BD math olympiad 2022 Selection Questions

 

āĻĒā§āϰāĻžāĻĨāĻŽāĻŋāĻ• āĻŦāĻŋāĻ­āĻžāĻ— (ā§§āĻŽ-⧍āϝāĻŧ āĻļā§āϰ⧇āĻŖāĻŋ):
ā§§. āϕ⧋āύ⧋ āĻŦāĻ›āϰ⧇āϰ ā§§āϞāĻž āϜāĻžāύ⧁āϝāĻŧāĻžāϰāĻŋ āϰāĻŦāĻŋāĻŦāĻžāϰ āĻšāϞ⧇, āϏ⧇āχ āϜāĻžāύ⧁āϝāĻŧāĻžāϰāĻŋ āĻŽāĻžāϏ⧇āϰ āĻļ⧇āώ āĻŽāĻ™ā§āĻ—āϞāĻŦāĻžāϰ āĻ•āĻŦ⧇?
1st January of a year is Sunday. What date is the last Tuesday of that January?

⧍. āĻĻ⧁āϟāĻŋ āĻ¤ā§āϰāĻŋāϭ⧁āϜ āĻĒāϰāĻ¸ā§āĻĒāϰ⧇āϰ āϏāĻžāĻĨ⧇ āϏāĻ°ā§āĻŦāĻžāϧāĻŋāĻ• āĻ•āϤāϗ⧁āϞ⧋ āĻŦāĻŋāĻ¨ā§āĻĻ⧁āϤ⧇ āϛ⧇āĻĻ āĻ•āϰāϤ⧇ āĻĒāĻžāϰ⧇, āϝ⧇āĻ–āĻžāύ⧇ āϕ⧋āύ⧋ āĻĻ⧁āχ āĻŦāĻžāĻšā§ āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞ āύāϝāĻŧ?
What is the maximum number of intersection points two triangles can have, where no two sides are parallel?

ā§Š. ā§Šā§Ļ⧍⧧ āĻāϰ āĻŽā§‹āϟ āĻ•āϤāϟāĻŋ āĻŽā§ŒāϞāĻŋāĻ• āĻ‰ā§ŽāĻĒāĻžāĻĻāĻ• āφāϛ⧇?
How many prime factors does 3021 have?

ā§Ē. đ‘Ĩ āĻāĻŦāĻ‚ đ‘Ļ āĻĻ⧁āχāϟāĻŋ āĻ¸ā§āĻŦāĻžāĻ­āĻžāĻŦāĻŋāĻ• āϏāĻ‚āĻ–ā§āϝāĻžāĨ¤ đ‘Ĩ āϕ⧇ ā§Ē āĻĻāĻŋāϝāĻŧ⧇ āĻ­āĻžāĻ— āĻ•āϰāϞ⧇ āĻ­āĻžāĻ—āĻļ⧇āώ 𝑎, āĻāĻŦāĻ‚ đ‘Ļ āϕ⧇ ā§­ āĻĻāĻŋāϝāĻŧ⧇ āĻ­āĻžāĻ— āĻ•āϰāϞ⧇ āĻ­āĻžāĻ—āĻļ⧇āώ 𝑏āĨ¤ 𝑎 + 𝑏-āĻāϰ āϏāĻ°ā§āĻŦā§‹āĻšā§āϚ āĻŽāĻžāύ āĻ•āϤ?
đ‘Ĩ and đ‘Ļ are two natural numbers. đ‘Ĩ when divided by 4 leaves a remainder 𝑎, and đ‘Ļ when divided by 7 leaves a remainder 𝑏. What is the largest value of (𝑎 + 𝑏)?

ā§Ģ. āĻāχ āϧāĻžāϰāĻž ā§Ē, ⧧⧍, ⧍ā§Ģ, ā§Ēā§Š-āĻāϰ āĻĒāϰāĻŦāĻ°ā§āϤ⧀ āϏāĻ‚āĻ–ā§āϝāĻž āϕ⧀?
What is the next number of this sequence: 4, 12, 25, 43?

ā§Ŧ. \[2022^9\]-āĻāϰ āĻļ⧇āώ āĻ…āĻ™ā§āĻ•āϟāĻŋ āϕ⧀?
What is the last digit of \[ 2022^9 \]?

ā§­. āϝāĻĻāĻŋ āĻāĻ•āϟāĻŋ āĻŦāĻ°ā§āĻ—āĻ•ā§āώ⧇āĻ¤ā§āϰ⧇āϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ ⧍ā§Ģ āĻšāϝāĻŧ, āϤāĻŦ⧇ āĻāϰ ā§Ē āϗ⧁āĻŖ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ āĻŦāĻŋāĻļāĻŋāĻˇā§āϟ āĻŦāĻ°ā§āĻ—āĻ•ā§āώ⧇āĻ¤ā§āϰ⧇āϰ āĻĒāϰāĻŋāϏ⧀āĻŽāĻž āĻ•āϤ?
The area of a square is 25. Find the perimeter of a square with 4 times the area of the first square.

ā§Ž. ⧍ā§Ļā§Ļā§Ē āϏāĻžāϞ⧇āϰ āĻĄāĻŋāϏ⧇āĻŽā§āĻŦāϰ āĻŽāĻžāϏ⧇ āĻāĻ•āϟāĻŋ āĻ—ā§āϰāĻš āφāĻŦāĻŋāĻˇā§āĻ•ā§ƒāϤ āĻšāϝāĻŧāĨ¤ āĻĻ⧇āĻ–āĻž āϗ⧇āϛ⧇, āĻĒā§āϰāϤāĻŋ ā§Š āĻŦāĻ›āϰ⧇ āϜāĻžāύ⧁āϝāĻŧāĻžāϰāĻŋ āĻŽāĻžāϏ⧇ āϜāύāϏāĻ‚āĻ–ā§āϝāĻž āĻĻā§āĻŦāĻŋāϗ⧁āĻŖ āĻšāϝāĻŧ āĻāĻŦāĻ‚ āĻĒā§āϰāϤāĻŋ ā§Ŧ āĻŦāĻ›āϰ⧇ āĻŽāĻžāĻ°ā§āϚ āĻŽāĻžāϏ⧇ āϤāĻž ā§§/ā§Ŧ āĻšāϝāĻŧ⧇ āϝāĻžāϝāĻŧāĨ¤ ⧍ā§Ļ⧍⧍ āϏāĻžāϞ⧇āϰ āĻĄāĻŋāϏ⧇āĻŽā§āĻŦāϰ⧇ āϜāύāϏāĻ‚āĻ–ā§āϝāĻž āϝāĻĻāĻŋ ā§Ģ⧧⧍ āĻšāϝāĻŧ, āϤāĻŦ⧇ āφāĻŦāĻŋāĻˇā§āĻ•āĻžāϰ⧇āϰ āϏāĻŽāϝāĻŧ āϜāύāϏāĻ‚āĻ–ā§āϝāĻž āĻ•āϤ āĻ›āĻŋāϞ?
BdMO scientists discovered a planet in December 2004. The population doubles in January every 3rd year and decreases to one-sixth in March every 6th year. If the population in December 2022 is 512, what was the population when the planet was discovered?

⧝. āĻĄāϟāϗ⧁āϞ⧋ āϏāĻ‚āϝ⧁āĻ•ā§āϤ āĻ•āϰ⧇ āϏāĻ°ā§āĻŦāĻžāϧāĻŋāĻ• āĻ•āϤāϗ⧁āϞ⧋ āĻŦāĻ°ā§āĻ— āϤ⧈āϰāĻŋ āĻ•āϰāĻž āϝāĻžāϝāĻŧ?
How many squares can be made by connecting the dots from the picture?

ā§§ā§Ļ. āĻāĻ•āϟāĻŋ āĻ•āϞāĻŽ, āĻāĻ•āϟāĻŋ āĻŦāχ āĻāĻŦāĻ‚ āĻāĻ•āϟāĻŋ āĻŦāϞ āφāĻŦ⧁āϞ āĻ“ āĻ•āĻžāĻŦ⧁āϞ⧇āϰ āĻŽāĻ§ā§āϝ⧇ āϕ⧀āĻ­āĻžāĻŦ⧇ āĻ­āĻžāĻ— āĻ•āϰāĻž āϝāĻžāĻŦ⧇ āϝāĻžāϤ⧇ āĻĒā§āϰāĻ¤ā§āϝ⧇āϕ⧇ āĻ…āĻ¨ā§āϤāϤ āĻāĻ•āϟāĻŋ āϜāĻŋāύāĻŋāϏ āĻĒāĻžāϝāĻŧ?
How many ways can one pen, one book, and one ball be distributed between Abul and Kabul so that each person gets at least one object?

Bangladesh Math Olympiad 2022 selection questions

āϜ⧁āύāĻŋāϝāĻŧāϰ āĻŦāĻŋāĻ­āĻžāĻ— (ā§ŠāϝāĻŧ-ā§ĒāĻ°ā§āĻĨ āĻļā§āϰ⧇āĻŖāĻŋ):
ā§§. ā§Šā§Ļā§Ļā§Š-āĻāϰ āϏāĻŦ āĻŽā§ŒāϞāĻŋāĻ• āĻ‰ā§ŽāĻĒāĻžāĻĻāϕ⧇āϰ āϝ⧋āĻ—āĻĢāϞ āĻ•āϤ?
What is the sum of all the prime factors of 3003?

⧍. āϝāĻĻāĻŋ 𝑎 āĻāĻ•āϟāĻŋ āϧāύāĻžāĻ¤ā§āĻŽāĻ• āĻĒā§‚āĻ°ā§āĻŖāϏāĻ‚āĻ–ā§āϝāĻž āĻšāϝāĻŧ, āϤāĻŦ⧇ \[ 7777^𝑎\]-āĻāϰ āχāωāύāĻŋāϟ āĻĄāĻŋāϜāĻŋāĻŸā§‡āϰ āĻ•āϤāϟāĻŋ āĻ­āĻŋāĻ¨ā§āύ āĻŽāĻžāύ āĻšāϤ⧇ āĻĒāĻžāϰ⧇?
If 𝑎 is a positive integer, then how many distinct units digits can \[7777^𝑎\] have?

ā§Š. āĻāĻ•āϟāĻŋ āϏāĻžāĻŽāĻ¨ā§āϤāϰāĻŋāϕ⧇āϰ āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞ āĻŦāĻžāĻšā§āϗ⧁āϞ⧋āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ ā§Ē āĻāĻŦāĻ‚ ā§Ž, āĻāĻŦāĻ‚ āωāĻšā§āϚāϤāĻž ā§ŦāĨ¤ āĻāϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ āĻ•āϤ?
The lengths of the parallel sides of a trapezium are 4, 8, and its height is 6. Find its area.

ā§Ē. āĻāĻ•āϟāĻŋ āĻĻ⧁āχ āĻ…āĻ™ā§āϕ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻžāϝāĻŧ, āĻĻāĻļāϕ⧇āϰ āĻ…āĻ™ā§āĻ• āĻāĻ•āϕ⧇āϰ āĻ…āĻ™ā§āϕ⧇āϰ āĻšā§‡āϝāĻŧ⧇ āĻŦāĻĄāĻŧ āĻāĻŦāĻ‚ āĻāĻ•āϕ⧇āϰ āĻ…āĻ™ā§āĻ• āĻļā§‚āĻ¨ā§āϝ āύāϝāĻŧāĨ¤ āĻĻāĻļāϕ⧇āϰ āĻ…āĻ™ā§āĻ• āĻ“ āĻāĻ•āϕ⧇āϰ āĻ…āĻ™ā§āϕ⧇āϰ āϗ⧁āĻŖāĻĢāϞ āϤāĻžāĻĻ⧇āϰ āϝ⧋āĻ—āĻĢāϞ⧇ āĻŦāĻŋāĻ­āĻžāĻœā§āϝāĨ¤ āĻāχ āϏāĻ‚āĻ–ā§āϝāĻž āĻ•āϤ?
In a two-digit number, the tens digit is greater than the units digit, and the units digit is nonzero. The product of these two digits is divisible by their sum. What is this two-digit number?

ā§Ģ. ABCD āφāϝāĻŧāϤāĻ•ā§āώ⧇āĻ¤ā§āϰ⧇āϰ E āĻŦāĻŋāĻ¨ā§āĻĻ⧁ ABEA-āĻāϰ āϚāĻžāĻĒ⧇āϰ āĻŽāĻ§ā§āϝāĻŦāĻŋāĻ¨ā§āĻĻ⧁āĨ¤ āĻ•āĻžāϞ⧋ āĻ…āĻ‚āĻļ⧇āϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ (𝑎 + đ‘Ī€) āφāĻ•āĻžāϰ⧇ āϞ⧇āĻ–āĻž āϝāĻžāϝāĻŧāĨ¤ (𝑎 + 𝑏) āĻāϰ āĻŽāĻžāύ āĻ•āϤ? AB = 20, BC = 18
In a rectangle ABCD, E is the midpoint of arc ABEA. The area of the black region can be expressed as (𝑎 + đ‘Ī€), where (𝑎, 𝑏) are integers. Compute (𝑎 + 𝑏). AB = 20, BC = 18.

ā§Ŧ. āĻĸāĻžāĻ•āĻžāĻ—ā§āϰāĻžāĻŽā§‡ āĻŦāĻ°ā§āϤāĻŽāĻžāύ⧇ ā§Šā§ĻāϟāĻŋ āĻŦāĻžāϏ āĻĒā§āϰāϤāĻŋāĻĻāĻŋāύ āĻ—āĻĄāĻŧ⧇ ā§Ēā§Ļā§Ļ āϜāύ āϝāĻžāĻ¤ā§āϰ⧀ āĻĒāϰāĻŋāĻŦāĻšāύ āĻ•āϰ⧇āĨ¤ āύāϤ⧁āύ āĻŦāĻžāϏ āϝ⧋āĻ— āĻ•āϰāϞ⧇ āĻĒā§āϰāϤāĻŋ āĻŦāĻžāϏ⧇āϰ āĻ—āĻĄāĻŧ āϝāĻžāĻ¤ā§āϰ⧀ āϏāĻ‚āĻ–ā§āϝāĻž ā§§ā§Ļ āϜāύ āĻ•āĻŽā§‡ āϝāĻžāϝāĻŧāĨ¤ āĻĒā§āϰāϤāĻŋāĻĻāĻŋāύ āϏāĻ°ā§āĻŦāĻžāϧāĻŋāĻ• āϝāĻžāĻ¤ā§āϰ⧀ āĻĒāϰāĻŋāĻŦāĻšāύ⧇āϰ āϜāĻ¨ā§āϝ āĻ āĻŋāĻ• āĻ•āϤāϟāĻŋ āĻŦāĻžāϏ āϝ⧋āĻ— āĻ•āϰāĻž āωāϚāĻŋāϤ?
Dhakagram city currently has 30 buses, each carrying 400 passengers daily. If adding one bus decreases average passengers per bus by 10, how many extra buses maximize daily passengers?

ā§­. ⧍ā§Ļ⧍⧍ āĻĨ⧇āϕ⧇ ā§¨ā§Šā§Žā§Ž-āĻāϰ āĻŽāĻ§ā§āϝ⧇ āĻāĻŽāύ āĻ•āϤāϗ⧁āϞ⧋ āϏāĻ‚āĻ–ā§āϝāĻž āφāϛ⧇, āϝ⧇āϗ⧁āϞ⧋āϰ āϚāĻžāϰāϟāĻŋ āĻ­āĻŋāĻ¨ā§āύ āĻ…āĻ™ā§āĻ• āĻ•ā§āϰāĻŽāĻžāύ⧁āϏāĻžāϰ⧇ āϏāĻžāϜāĻžāύ⧋?
How many integers between 2022 and 2388 have four distinct digits arranged in increasing order?

ā§Ž. ā§¯Ã—ā§¯ āĻĻāĻžāĻŦāĻžāϰ āĻŦā§‹āĻ°ā§āĻĄā§‡ āϏāĻ°ā§āĻŦāĻžāϧāĻŋāĻ• āĻ•āϤāϟāĻŋ āĻšāĻžāϤāĻŋ āĻŦāϏāĻžāύ⧋ āϝāĻžāĻŦ⧇ āϝāĻžāϤ⧇ āϤāĻžāϰāĻž āĻāϕ⧇ āĻ…āĻĒāϰāϕ⧇ āφāĻ•ā§āϰāĻŽāĻŖ āύāĻž āĻ•āϰ⧇?
What is the maximum number of bishops that can be placed on a 9×9 chessboard so that no two bishops attack each other?

⧝. BDMOLAND-āĻāϰ āϰāĻžāϜāĻž āϤ⧁āύāĻžāϕ⧇ āĻĒā§āϰāĻĨāĻŽ āĻĻāĻŋāύ ā§§ āϟāĻžāĻ•āĻž āĻĻāĻŋāϝāĻŧ⧇āϛ⧇āύ āĻāĻŦāĻ‚ āĻĒā§āϰāϤāĻŋāĻĻāĻŋāύ āφāϗ⧇āϰ āĻĻāĻŋāύ⧇āϰ āĻĻā§āĻŦāĻŋāϗ⧁āĻŖ āϟāĻžāĻ•āĻž āĻĻāĻŋāϤ⧇ āϰāĻžāϜāĻŋāĨ¤ āϤ⧁āύāĻž āĻĒā§āϰāϤāĻŋāĻĻāĻŋāύ āϟāĻžāĻ•āĻž āύāĻŋāϤ⧇ āϝāĻžāϝāĻŧāύāĻŋ āĻāĻŦāĻ‚ āĻŽā§‹āϟ ā§Ŧ āĻĻāĻŋāύ⧇ ā§Šā§§ āϟāĻžāĻ•āĻž āĻĒ⧇āϝāĻŧ⧇āϛ⧇āĨ¤ āϤ⧁āύāĻž āĻ•āϝāĻŧāĻĻāĻŋāύ āϟāĻžāĻ•āĻž āύāĻŋāϤ⧇ āĻ—āĻŋāϝāĻŧ⧇āĻ›āĻŋāϞ?
The king of BdMOLAND gave Tunna 1 taka on the first day, doubling the amount every day. However, Tunna skipped some days and collected a total of 31 taka in 6 days. On how many days did she collect money?

ā§§ā§Ļ. ā§§ āĻĨ⧇āϕ⧇ ā§Ēā§Ēā§Ē āĻĒāĻ°ā§āϝāĻ¨ā§āϤ āϏāĻŦ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āĻ…āĻ™ā§āĻ•āϗ⧁āϞ⧋āϰ āϝ⧋āĻ—āĻĢāϞ āĻ•āϤ?
Find the summation of all the digits of the numbers from 1 to 444.

BDMO 2022 math questions PDF

āϏ⧇āϕ⧇āĻ¨ā§āĻĄāĻžāϰāĻŋ āĻŦāĻŋāĻ­āĻžāĻ— (ā§ĢāĻŽ-ā§ŦāĻˇā§āĻ  āĻļā§āϰ⧇āĻŖāĻŋ):
ā§§. \[ 2022^7 \]-āĻāϰ āĻļ⧇āώ āĻ…āĻ™ā§āĻ•āϟāĻŋ āϕ⧀?
What is the last digit of \[2022^7\]?

⧍. āϝāĻĻāĻŋ āĻāĻ•āϟāĻŋ āϏāĻŽāĻŦāĻžāĻšā§ āϰāĻŽā§āĻŦāϏ⧇āϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ ā§Ģā§Ē āĻšāϝāĻŧ āĻāĻŦāĻ‚ āĻ•āĻ°ā§āĻŖāĻĻā§āĻŦāϝāĻŧ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻĒā§‚āĻ°ā§āĻŖāϏāĻ‚āĻ–ā§āϝāĻž āĻšāϝāĻŧ, āϤāĻŦ⧇ āϏāĻ°ā§āĻŦāĻŽā§‹āϟ āĻ•āϤāϟāĻŋ āϰāĻŽā§āĻŦāϏ āφāρāĻ•āĻž āϏāĻŽā§āĻ­āĻŦ?
The area of a rhombus is 54. If the lengths of the diagonals are integers, how many different rhombuses can be drawn?

ā§Š. \[\triangle ABC\] āĻāĻ•āϟāĻŋ āϏāĻŽāϕ⧋āĻŖā§€ āĻ¤ā§āϰāĻŋāϭ⧁āϜāĨ¤ AB = AC, āĻāĻŦāĻ‚ D āĻ“ F āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡ AB āĻ“ AC-āĻāϰ āĻŽāĻ§ā§āϝāĻŦāĻŋāĻ¨ā§āĻĻ⧁āĨ¤ DF || BCāĨ¤ āϝāĻĻāĻŋ AB = 32, āϤāĻŦ⧇ \[\triangle DMF\]-āĻāϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ āĻ•āϤ?
In \[\triangle ABC\], AB = AC, and D and Fare the midpoints of AB and AC, respectively. DF || BC. Find the area of \[\triangle DMF\] if AB = 32.

 

Bangladesh Olympiad 2022 math practice questions

ā§Ē. āϏāĻ•āĻžāϞ ā§§ā§ĻāϟāĻžāϝāĻŧ āĻāĻ•āϟāĻŋ āϞāĻžāĻ āĻŋāϰ āĻ›āĻžāϝāĻŧāĻžāϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ ā§Ēā§Ŧ āϏ⧇āĻŽāĻŋ āĻšāϝāĻŧāĨ¤ āĻĻ⧁āĻĒ⧁āϰ ā§§āϟāĻžāϝāĻŧ āĻ›āĻžāϝāĻŧāĻžāϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻ•āϤ āĻšāĻŦ⧇? (āϏ⧂āĻ°ā§āϝ⧇āϰ āĻ…āĻŦāĻ¸ā§āĻĨāĻžāύ⧇āϰ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ ā§­ā§Ģ°)
At 10 am, a stick perpendicular to the ground has a shadow equal to its length 46 cm. At 1 pm, what will be the length of its shadow? The difference in the sun’s position is 75°.

ā§Ģ. āĻĸāĻžāĻ•āĻžāĻ—ā§āϰāĻžāĻŽā§‡ āĻŦāĻ°ā§āϤāĻŽāĻžāύ⧇ ā§Šā§ĻāϟāĻŋ āĻŦāĻžāϏāĨ¤ āύāϤ⧁āύ āĻŦāĻžāϏ āϝ⧋āĻ— āĻ•āϰāϞ⧇ āĻĒā§āϰāϤāĻŋ āĻŦāĻžāϏ⧇āϰ āĻ—āĻĄāĻŧ āϝāĻžāĻ¤ā§āϰ⧀ āϏāĻ‚āĻ–ā§āϝāĻž ā§§ā§Ļ āϜāύ āĻ•āĻŽā§‡ āϝāĻžāϝāĻŧāĨ¤ āϏāĻ°ā§āĻŦāĻžāϧāĻŋāĻ• āϝāĻžāĻ¤ā§āϰ⧀ āĻĒāϰāĻŋāĻŦāĻšāύ⧇āϰ āϜāĻ¨ā§āϝ āĻ•āϤāϟāĻŋ āĻŦāĻžāϏ āϝ⧋āĻ— āĻ•āϰāĻž āωāϚāĻŋāϤ?
Dhakagram city currently has 30 buses. If adding a bus decreases passengers per bus by 10, how many buses should be added to maximize daily passengers?

ā§Ŧ. ā§Šā§Ģ-āĻāϰ āϏāĻŦ āĻ‰ā§ŽāĻĒāĻžāĻĻāĻ• āĻĻāĻŋāϝāĻŧ⧇ 𝑎/b āφāĻ•āĻžāϰ⧇ āĻ—āĻ āĻŋāϤ āĻ­āĻ—ā§āύāĻžāĻ‚āĻļāϗ⧁āϞ⧋āϰ āϝ⧋āĻ—āĻĢāϞ 𝑚/nāĨ¤ āĻāĻ–āĻžāύ⧇ 𝑚, n āϏāĻšāĻŽā§ŒāϞāĻŋāĻ•āĨ¤ (𝑚 + n)-āĻāϰ āĻŽāĻžāύ āĻ•āϤ?
The sum of fractions formed as 𝑎/b, where (𝑎, b) are divisors of 35, is expressed as 𝑚/n. Find (𝑚 + n), where (𝑚, n) are co-primes.

ā§­. āϝāĻĻāĻŋ f(x+3) = f(x+1) + 4x + 12 āĻāĻŦāĻ‚ f(0) = 2, āϤāĻŦ⧇ f(500)-āĻāϰ āĻŽāĻžāύ āĻ•āϤ?
If f(x+3) = f(x+1) + 4x + 12 and f(0) = 2, find \(f(500)\).

ā§Ž. āĻāĻ•āϟāĻŋ āĻ›āĻ•ā§āĻ•āĻž āϤāĻŋāύāĻŦāĻžāϰ āĻĢ⧇āϞāĻž āĻšāϞ⧇, āĻĒā§āϰāϤāĻŋ āĻŦāĻžāϰ āϏāĻ‚āĻ–ā§āϝāĻž āφāϗ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āĻšā§‡āϝāĻŧ⧇ āϛ⧋āϟ āĻšāĻ“āϝāĻŧāĻžāϰ āϏāĻŽā§āĻ­āĻžāĻŦā§āϝāϤāĻž m : n āφāĻ•āĻžāϰ⧇ āϞ⧇āĻ–āĻž āϝāĻžāϝāĻŧ, āϝ⧇āĻ–āĻžāύ⧇ (m, n) āϏāĻšāĻŽā§ŒāϞāĻŋāĻ•āĨ¤ (m + n)-āĻāϰ āĻŽāĻžāύ āĻ•āϤ?BD math olympiad 2022 Selection Questions
A dice is thrown three times. The probability that the number is less than the previous roll can be expressed as m : n, where (m, n) are co-primes. Find m + n.

⧝. āĻĒāϰāĻĒāϰ āĻĻ⧁āϟāĻŋ āĻĒā§‚āĻ°ā§āĻŖ āĻŦāĻ°ā§āĻ—āϏāĻ‚āĻ–ā§āϝāĻžāϰ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ ā§Šā§Ļ⧍⧍-āĻāϰ āĻšā§‡āϝāĻŧ⧇ āĻ•āĻŽ āĻšāϞ⧇, āĻāĻŽāύ āĻ•āϤāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻž āφāϛ⧇?
How many pairs of consecutive perfect square numbers have a difference less than 3022?

ā§§ā§Ļ. āϤāĻŋāύāϟāĻŋ āĻŦā§āϝāĻžāĻ™ (A, B, C) āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡ āĻĒā§āϰāϤāĻŋ ⧍āϝāĻŧ, ā§ŠāϝāĻŧ āĻ“ ā§ĢāĻŽ āĻĒāĻžāĻĨāϰ⧇ āϞāĻžāĻĢ āĻĻ⧇āϝāĻŧāĨ¤ āϤāĻžāϰāĻž āϕ⧋āύ āĻĒāĻžāĻĨāϰ⧇ āφāĻŦāĻžāϰ āĻāĻ•āĻ¤ā§āϰ⧇ āĻĻ⧇āĻ–āĻž āĻ•āϰāĻŦ⧇?
Three frogs (A, B, C) jump to every 2nd, 3rd, and 5th stone, respectively. In which stone will they meet again?

 

Math Olympiad selection questions Bangladesh 2022

āωāĻšā§āϚ āĻŽāĻžāĻ§ā§āϝāĻŽāĻŋāĻ• āĻŦāĻŋāĻ­āĻžāĻ— (ā§­āĻŽ-ā§ŽāĻŽ āĻļā§āϰ⧇āĻŖāĻŋ):
ā§§.\[7777^{2022}\]-āĻāϰ āĻļ⧇āώ āĻ…āĻ™ā§āĻ•āϟāĻŋ āϕ⧀?
What is the last digit of \[7777^{2022}\]?

⧍. \[4n^2\] āϝāĻĻāĻŋ āϏāĻ°ā§āĻŦā§‹āĻšā§āϚ āϤāĻŋāύ āĻ…āĻ™ā§āϕ⧇āϰ āĻĒā§‚āĻ°ā§āĻŖāĻŦāĻ°ā§āĻ— āϏāĻ‚āĻ–ā§āϝāĻž āĻšāϝāĻŧ, āϤāĻŦ⧇ n-āĻāϰ āĻŽāĻžāύ āĻ•āϤ?
Let \[4n^2\] be the largest three-digit square number. What is the value of n?

ā§Š. 777 āĻĨ⧇āϕ⧇ 2222 āĻĒāĻ°ā§āϝāĻ¨ā§āϤ āĻ•āϤāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻž āφāϛ⧇ āϝ⧇āϗ⧁āϞ⧋ f(k) āφāĻ•āĻžāϰ⧇ āĻĒā§āϰāĻ•āĻžāĻļ āĻ•āϰāĻž āϝāĻžāϝāĻŧ, āϝ⧇āĻ–āĻžāύ⧇ f(k) = 2k āϝāĻĻāĻŋ k āĻŦāĻŋāĻœā§‹āĻĄāĻŧ āĻšāϝāĻŧ, āφāϰ f(k) = 2k+1 āϝāĻĻāĻŋ k āĻœā§‹āĻĄāĻŧ āĻšāϝāĻŧ?
How many integers from 777 to 2222 can be expressed as f(k), where f(k) = 2k for odd k, and f(k) = 2k+1 for even k?

ā§Ē. ⧍ā§Ļ⧍⧍-āĻāϰ āĻšā§‡āϝāĻŧ⧇ āϛ⧋āϟ āĻāĻŦāĻ‚ ā§Š āĻĻā§āĻŦāĻžāϰāĻž āĻŦāĻŋāĻ­āĻžāĻœā§āϝ āĻāĻŽāύ āĻ•āϤāϗ⧁āϞ⧋ āĻĒā§‚āĻ°ā§āĻŖāĻŦāĻ°ā§āĻ— āϏāĻ‚āĻ–ā§āϝāĻž āφāϛ⧇?
How many square numbers less than 2022 are divisible by 3?

ā§Ģ. x āĻāĻ•āϟāĻŋ āϧāύāĻžāĻ¤ā§āĻŽāĻ• āĻĒā§‚āĻ°ā§āĻŖāϏāĻ‚āĻ–ā§āϝāĻž, āĻāĻŦāĻ‚ (x+77) āωāĻ­āϝāĻŧāχ āĻĒā§‚āĻ°ā§āĻŖāĻŦāĻ°ā§āĻ—āĨ¤ āĻāĻŽāύ x-āĻāϰ āϝ⧋āĻ—āĻĢāϞ āĻ•āϤ?
x is a positive integer such that both x and (x+77) are squares of integers. Find the total value of all such x.

ā§Ŧ. ā§­ā§Ļ-āĻāϰ āϏāĻŦ āĻ‰ā§ŽāĻĒāĻžāĻĻāĻ• āĻĻāĻŋāϝāĻŧ⧇ 𝑎/b āφāĻ•āĻžāϰ⧇ āĻ—āĻ āĻŋāϤ āĻ­āĻ—ā§āύāĻžāĻ‚āĻļāϗ⧁āϞ⧋āϰ āϝ⧋āĻ—āĻĢāϞ 𝑚/nāĨ¤ m+n-āĻāϰ āĻŽāĻžāύ āĻ•āϤ?
The sum of fractions formed as 𝑎/b, where (𝑎, b) are divisors of 70, is expressed as 𝑚/n. Find (𝑚 + n), where (𝑚, n) are co-primes.
ā§­. BCDE āĻāĻ•āϟāĻŋ āφāϝāĻŧāϤāĻ•ā§āώ⧇āĻ¤ā§āϰāĨ¤ BC = 9, CD = 6āĨ¤ BCDE-āĻāϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ āϝāĻĻāĻŋ ABCD-āĻāϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ⧇āϰ āϏāĻŽāĻžāύ āĻšāϝāĻŧ, āϤāĻŦ⧇ ABCD-āĻāϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ āĻ•āϤ?
BCDE is a rectangle with BC = 9, CD = 6. If the area of BCDE equals the area of ABCD, what is the area of ABCD?

ā§Ž. ā§§ā§ĒāϟāĻŋ āĻ‰ā§ŽāĻĒāĻžāĻĻāĻ• āĻĨāĻžāĻ•āĻž āϏāĻŦāĻšā§‡āϝāĻŧ⧇ āϛ⧋āϟ āϧāύāĻžāĻ¤ā§āĻŽāĻ• āĻĒā§‚āĻ°ā§āĻŖāϏāĻ‚āĻ–ā§āϝāĻž āĻ•āϤ?
What is the smallest positive integer with exactly 14 factors?

⧝. ā§Ļ āĻĨ⧇āϕ⧇ ā§§ā§Ļ āĻĒāĻ°ā§āϝāĻ¨ā§āϤ āϏāĻ‚āĻ–ā§āϝāĻž āĻāĻŽāύāĻ­āĻžāĻŦ⧇ āϏāĻžāϜāĻžāύ⧋āϰ āĻ•āϤāϗ⧁āϞ⧋ āωāĻĒāĻžāϝāĻŧ āφāϛ⧇ āϝāĻžāϤ⧇ āĻĒāĻžāĻ°ā§āĻļā§āĻŦāĻŦāĻ°ā§āϤ⧀ āĻĻ⧁āϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āϝ⧋āĻ—āĻĢāϞ ā§§ā§§-āĻāϰ āĻŦ⧇āĻļāĻŋ āύāĻž āĻšāϝāĻŧ?
How many ways can you order the numbers 0 to 10 such that the sum of two adjacent numbers is not greater than 11?

ā§§ā§Ļ. āĻāĻ•āϟāĻŋ āĻŦ⧃āĻ¤ā§āϤ⧇āϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ 100Ī€; BD = 8, AB = 6āĨ¤ BD-āĻāϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ \[-12 + x\sqrt{39}) / y\] āφāĻ•āĻžāϰ⧇ āϞ⧇āĻ–āĻž āϝāĻžāϝāĻŧāĨ¤ x, y-āĻāϰ āϞāϏāĻžāϗ⧁ āĻ•āϤ?
The area of a circle is 100Ī€. If BD = 8, AB = 6, the length of BD can be expressed as \[-12 + x\sqrt{39}) / y\]. Find the LCM of x and y.

 

BdMO-2022-Selection-Questions

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