Bd math olympiad regional questions 2016

Primary Category

1. □ × 57 = 575757
āĻ–āĻžāϞāĻŋ āϘāϰ āĻĒā§‚āϰāĻŖ āĻ•āϰāĨ¤
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2. āϕ⧋āύ āĻāĻ•āϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āϏāĻžāĻĨ⧇ ā§Ē āϝ⧋āĻ— āĻ•āϰāϞ⧇ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻĻā§āĻŦāĻŋāϗ⧁āύ āĻšāϝāĻŧāĨ¤ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤ?
A number is doubled if it 8 is added with it. What is that number?
3. 24 āϕ⧇ āĻŽā§‹āϟ āĻ•āϤāϗ⧁āϞ⧋ āϧāύāĻžāĻ¤ā§āĻŽāĻ• āĻĒā§‚āĻ°ā§āĻŖāϏāĻ‚āĻ–ā§āϝāĻž āĻĻā§āĻŦāĻžāϰāĻž āĻ­āĻžāĻ— āĻ•āϰāĻž āϝāĻžāϝāĻŧ, āϝāĻžāϤ⧇ āĻ­āĻžāĻ—āĻļ⧇āώ āĻļā§‚āĻ¨ā§āϝ āĻšāϝāĻŧ?
How many positive integers are there by which 24 is divisible?
4. āϤ⧁āĻŽāĻŋ āϤ⧋āĻŽāĻžāϰ āĻŦāĻžāϏāĻž āĻĨ⧇āϕ⧇ 10 āĻ•āĻŋāĻŽāĻŋ āωāĻ¤ā§āϤāϰ, āϤāĻžāϰāĻĒāϰ 10 āĻ•āĻŋ.āĻŽāĻŋ. āĻĒā§‚āĻ°ā§āĻŦ, āϤāĻžāϰāĻĒāϰ 5 āĻ•āĻŋ.āĻŽāĻŋ.āĻĻāĻ•ā§āώāĻŋāĻŖ āĻāĻŦāĻ‚ āϏāĻŦāĻļ⧇āώ⧇ 10 āĻ•āĻŋ.āĻŽāĻŋ āĻĒāĻļā§āϚāĻŋāĻŽā§‡ āϗ⧇āϞ⧇āĨ¤ āϤ⧁āĻŽāĻŋ āĻŦāĻžāϏāĻž āĻĨ⧇āϕ⧇ āĻ•āϤ āĻ•āĻŋ.āĻŽāĻŋ. āĻĻā§‚āϰ⧇ āφāϛ⧋?
If you start your journey from your house and go at first 10 kilometeres to north then 10 kilometres to East, then 5 kilometres to South, and finally 10 kilometres to west. Then what is your final distance (in kilometer) from your house?
5. A āĻĨ⧇āϕ⧇ C āϤ⧇ āϝāĻžāĻŦāĻžāϰ āĻĻ⧁āϟāĻŋ āϰ⧇āϞāĻĒāĻĨ āĻ“ C āĻĨ⧇āϕ⧇ B āϤ⧇ āϝāĻžāĻŦāĻžāϰ āϤāĻŋāύāϟāĻŋ āϰ⧇āϞāĻĒāĻĨ āĻ“ A āĻĨ⧇āϕ⧇ B āϤ⧇ āϝāĻžāĻŦāĻžāϰ āϏāϰāĻžāϏāϰāĻŋ āĻŦāĻŋāĻŽāĻžāύ āĻĒāĻĨ āφāϛ⧇ āĨ¤ āĻ•āϤāĻ­āĻžāĻŦ⧇ A āĻĨ⧇āϕ⧇ B āϤ⧇ āϝāĻžāĻ“āϝāĻŧāĻž āϝāĻžāĻŦ⧇?

Bd math olympiad regional questions 2016
There are two railways from A to C, 3 railways from C to B and one direct plane trip from A to B. In how many ways is it possible to go from A to B?
6. āύāĻžāĻĢāĻŋāϏ āύāϝāĻŧāϟāĻŋ āĻ•ā§āϰāĻŽāĻŋāĻ• āϏāĻ‚āĻ–ā§āϝāĻž āϝ⧋āĻ— āĻ•āϰ⧇ āϝ⧋āĻ—āĻĢāϞ āĻĒ⧇āϞ 270āĨ¤ āϤāĻžāĻšāϞ⧇ āϐ āύāϝāĻŧāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āĻŽāĻžāĻāĻ–āĻžāύ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤ ?
Nafis found that the sum of nine consecutive numbers is 270. Then what is the middle number of those nine numbers?
7. āĻāĻ• āĻŽā§‹āĻŦāĻžāχāϞ āϕ⧋āĻŽā§āĻĒāĻžāύāĻŋ āĻŽā§‹āĻŦāĻžāχāϞ⧇āϰ āĻ•āĻžāĻ°ā§āĻĄ āϤ⧈āϰāĻŋāϤ⧇ 0,1 āĻāĻŦāĻ‚ 2 āĻ›āĻžāĻĄāĻŧāĻž āĻ…āĻ¨ā§āϝ āϕ⧋āύ āĻĄāĻŋāϜāĻŋāϟ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ āύāĻžāĨ¤ āϝāĻĻāĻŋ āĻŽā§‹āĻŦāĻžāχāϞ⧇āϰ āĻ•āĻžāĻ°ā§āĻĄāϗ⧁āϞ⧋ 5 āĻĄāĻŋāϜāĻŋāĻŸā§‡āϰ āĻšāϝāĻŧ āϤāĻžāĻšāϞ⧇ āϤāĻžāϰāĻž āĻ•āϤ āϗ⧁āϞ⧋ āĻŽā§‹āĻŦāĻžāχāϞ⧇āϰ āĻ•āĻžāĻ°ā§āĻĄ āĻŦāĻžāϜāĻžāϰ⧇ āĻ›āĻžāĻĄāĻŧāϤ⧇ āĻĒāĻžāϰāĻŦ⧇?
A mobile company uses only the digits 0, 1 and 2 to make their mobile cards. If the mobile cards are of 5 digits, then how many cards can they supply to the _market?
8. 1 āĻĨ⧇āϕ⧇ 10 āĻāϰ āĻŽāĻ§ā§āϝ⧇ āϏāĻŦāϗ⧁āϞ⧋ āϏāĻ‚āĻ–ā§āϝāĻž āĻ•āĻŽāĻĒāĻ•ā§āώ⧇ 1 āĻŦāĻžāϰ āĻ“ āϏāĻ°ā§āĻŦā§‹āĻšā§āϚ 2 āĻŦāĻžāϰ āĻ•āϰ⧇ āύāĻŋāϝāĻŧ⧇ āϝ⧋āĻ— āĻ•āϰāĻž āĻšāϞāĨ¤ āϝ⧋āĻ—āĻĢāϞ 108 āĻšāϞ⧇ āĻ•āϝāĻŧāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻž 2 āĻŦāĻžāϰ āĻ•āϰ⧇ āφāϛ⧇?
All the numbers between 1 and 10 are added taking each number at least once and at most twice. If the sum is 108, how many numbers are added twice?

Junior Category

1. □ X 757 = 757757757
āĻ–āĻžāϞāĻŋ āϘāϰ āĻĒā§‚āϰāĻŖ āĻ•āϰāĨ¤
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2. āϕ⧋āύ āĻāĻ•āϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āϏāĻžāĻĨ⧇ 12 āϝ⧋āĻ— āĻ•āϰāϞ⧇ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻĻā§āĻŦāĻŋāϗ⧁āύ āĻšāϝāĻŧāĨ¤ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤ?
A number is doubled if it 12 is added with it. What is that number ?
3. āϤ⧁āĻŽāĻŋ āϤ⧋āĻŽāĻžāϰ āĻŦāĻžāϏāĻž āĻĨ⧇āϕ⧇ 10 āĻ•āĻŋāĻŽāĻŋ .āωāĻ¤ā§āϤāϰ, āϤāĻžāϰāĻĒāϰ 10 āĻ•āĻŋ.āĻŽāĻŋ. āĻĒā§‚āĻ°ā§āĻŦ, āϤāĻžāϰāĻĒāϰ 6 āĻ•āĻŋ.āĻŽāĻŋ.āĻĻāĻ•ā§āώāĻŋāĻŖ āĻāĻŦāĻ‚ āϏāĻŦāĻļ⧇āώ⧇ 10 āĻ•āĻŋ.āĻŽāĻŋ .āĻĒāĻļā§āϚāĻŋāĻŽā§‡ āϗ⧇āϞ⧇āĨ¤ āϤ⧁āĻŽāĻŋ āĻŦāĻžāϏāĻž āĻĨ⧇āϕ⧇ āĻ•āϤ āĻ•āĻŋ. āĻŽāĻŋ. āĻĻā§‚āϰ⧇ āφāϛ⧋?
If you start your journey from your house and go at first 10 kilometeres to north then 10 kilometres to East, then 6 kilometres to South, and finally 10 kilometres to west. Then what is your final distance (in kilometer) from your house?
4. 101^2 + 103^2 + 202^2 + 2 × 101 × 103 – 2 × 101 × 202 – 2 × 103 × 202 = ?
5. āύāĻžāĻĢāĻŋāϏ āύāϝāĻŧāϟāĻŋ āĻ•ā§āϰāĻŽāĻŋāĻ• āϏāĻ‚āĻ–ā§āϝāĻž āϝ⧋āĻ— āĻ•āϰ⧇ āϝ⧋āĻ—āĻĢāϞ āĻĒ⧇āϞ 171āĨ¤ āϤāĻžāĻšāϞ⧇ āϐ āύāϝāĻŧāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āĻŽāĻžāĻāĻ–āĻžāύ⧇āϰ
āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤ ?
Nafis found that the sum of nine consecutive numbers is 171. Then what is the middle number of those nine numbers?
6. āĻāĻ• āĻŽā§‹āĻŦāĻžāχāϞ āϕ⧋āĻŽā§āĻĒāĻžāύāĻŋ āĻŽā§‹āĻŦāĻžāχāϞ⧇āϰ āĻ•āĻžāĻ°ā§āĻĄ āϤ⧈āϰāĻŋāϤ⧇ 0,1 āĻāĻŦāĻ‚ 2 āĻ›āĻžāĻĄāĻŧāĻž āĻ…āĻ¨ā§āϝ āϕ⧋āύ āĻĄāĻŋāϜāĻŋāϟ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇ āύāĻžāĨ¤ āϝāĻĻāĻŋ āĻŽā§‹āĻŦāĻžāχāϞ⧇āϰ āĻ•āĻžāĻ°ā§āĻĄāϗ⧁āϞ⧋ 6 āĻĄāĻŋāϜāĻŋāĻŸā§‡āϰ āĻšāϝāĻŧ āϤāĻžāĻšāϞ⧇ āϤāĻžāϰāĻž āĻ•āϤ āϗ⧁āϞ⧋ āĻŽā§‹āĻŦāĻžāχāϞ⧇āϰ āĻ•āĻžāĻ°ā§āĻĄ
āĻŦāĻžāϜāĻžāϰ⧇ āĻ›āĻžāĻĄāĻŧāϤ⧇ āĻĒāĻžāϰāĻŦ⧇?
A mobile company uses only the digits 0, 1 and 2 to make their mobile cards. If the mobile cards are of 6 digits, then how many cards can they supply to the market?
7. āĻāĻ•āϟāĻŋ āĻŦ⧃āĻ¤ā§āϤ⧇āϰ AD āĻŦā§āϝāĻžāϏ āĻāĻŦāĻ‚ AB||CD āĻĻ⧁āχāϟāĻŋ āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞ āĻœā§āϝāĻžāĨ¤ āĻœā§āϝāĻžāĻĻā§āĻŦāϝāĻŧ⧇āϰ āĻŽāĻ§ā§āϝāĻŦāĻ°ā§āϤ⧀ āϞāĻŽā§āĻŦ āĻĻā§‚āϰāĻ¤ā§āĻŦ ā§Ē āĻāĻ•āĻ• āĻāĻŦāĻ‚ āĻāĻ•āϟāĻŋ āĻœā§āϝāĻž 6 āĻāĻ•āĻ•āĨ¤ āĻŦ⧃āĻ¤ā§āϤ⧇āϰ āĻŦā§āϝāĻžāϏāĻžāĻ°ā§āϧ āĻ•āϤ?

%Focuse keyword%
AD is the diameter of a circle and AB, CD are two parallel chords. The perpendicular distance between the two chords is 8 units and one chord is 6 units long. What is the radius of the circle?
8. abc0ac āĻāĻ•āϟāĻŋ āĻ›āϝāĻŧ āĻ…āĻ‚āϕ⧇āϰ āĻĒā§‚āĻ°ā§āĻŖāĻŦāĻ°ā§āĻ— āϏāĻ‚āĻ–ā§āϝāĻž āϝ⧇āϟāĻŋ 5 āĻāĻŦāĻ‚ 11 āĻĻā§āĻŦāĻžāϰāĻž āĻŦāĻŋāĻ­āĻžāĻœā§āϝ āĨ¤ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤ? abc0ac is a six digit perfect square number which is divisible by 5 and 11. Find out the number.

 

Secondary Category

1. □ X 1001001 = 1003003002
āĻ–āĻžāϞāĻŋ āϘāϰ āĻĒā§‚āϰāĻŖ āĻ•āϰāĨ¤
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2. āϤ⧁āĻŽāĻŋ āϤ⧋āĻŽāĻžāϰ āĻŦāĻžāϏāĻž āĻĨ⧇āϕ⧇ 10 āĻ•āĻŋāĻŽāĻŋ .āωāĻ¤ā§āϤāϰ, āϤāĻžāϰāĻĒāϰ 10 āĻ•āĻŋ.āĻŽāĻŋ.āĻĒā§‚āĻ°ā§āĻŦ, āϤāĻžāϰāĻĒāϰ 3 āĻ•āĻŋ.āĻŽāĻŋ.āĻĻāĻ•ā§āώāĻŋāĻŖ āĻāĻŦāĻ‚ āϏāĻŦāĻļ⧇āώ⧇ 10 āĻ•āĻŋ.āĻŽāĻŋ .āĻĒāĻļā§āϚāĻŋāĻŽā§‡ āϗ⧇āϞ⧇āĨ¤ āϤ⧁āĻŽāĻŋ āĻŦāĻžāϏāĻž āĻĨ⧇āϕ⧇ āĻ•āϤ āĻ•āĻŋ. āĻŽāĻŋ. āĻĻā§‚āϰ⧇ āφāϛ⧋?
If you start your journey from your house and go at first 10 kilometeres to north then 10 kilometres to East, then 3 kilometres to South, and finally 10 kilometres to west. Then what is your final distance (in kilometer) from your house?
3. 104^2 + 103^2 + 202^2 + 2 × 104 × 103 – 2 × 104 x 202 – 2 × 103 × 202 =?
4. āύāĻžāĻĢāĻŋāϏ āύāϝāĻŧāϟāĻŋ āĻ•ā§āϰāĻŽāĻŋāĻ• āϏāĻ‚āĻ–ā§āϝāĻž āϝ⧋āĻ— āĻ•āϰ⧇ āϝ⧋āĻ—āĻĢāϞ āĻĒ⧇āϞ 198āĨ¤ āϤāĻžāĻšāϞ⧇ āϐ āύāϝāĻŧāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āĻŽāĻžāĻāĻ–āĻžāύ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤ?
Nafis found that the sum of nine consecutive numbers is 198. Then what is the middle number of those nine numbers?
5. abc0ac āĻāĻ•āϟāĻŋ āĻ›āϝāĻŧ āĻ…āĻ‚āϕ⧇āϰ āĻĒā§‚āĻ°ā§āĻŖāĻŦāĻ°ā§āĻ—āϏāĻ‚āĻ–ā§āϝāĻž āϝ⧇āϟāĻŋ 5 āĻāĻŦāĻ‚ 11 āĻĻā§āĻŦāĻžāϰāĻž āĻŦāĻŋāĻ­āĻžāĻœā§āϝ āĨ¤ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤ? abc0ac is a six digit perfect square number which is divisible by 5 and 11. Find out the number.
6. ABCD āφāϝāĻŧāϤāĻ•ā§āώ⧇āĻ¤ā§āϰ⧇ AB=131 AB āϕ⧇ āĻŦā§āϝāĻžāϏ āϧāϰ⧇ āφāρāĻ•āĻž āĻ…āĻ°ā§āϧāĻŦ⧃āĻ¤ā§āϤ CD āϕ⧇ āĻĻ⧁āχāϟāĻŋ āĻŦāĻŋāĻ¨ā§āĻĻ⧁ P āĻ“ Q āϤ⧇ āϛ⧇āĻĻ āĻ•āϰ⧇āĨ¤ AP=12 āĻšāϞ⧇ ABCD āĻāϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ āĻ•āϤ?
In ABCD rectangle where AB=13. The semicircle drawn by considering AB as diameter intersects CD at P and Q points. If AP=12, then find the area of ABCD.
7. āĻĒāĻžā§āϚāĻžāĻļāϟāĻŋ āϧāύāĻžāĻ¤ā§āĻŽāĻ• āĻĒā§‚āĻ°ā§āĻŖāϏāĻ‚āĻ–ā§āϝāĻžāϕ⧇ āĻĒāĻžāĻļāĻžāĻĒāĻžāĻļāĻŋ āϞ⧇āĻ–āĻž āĻšāϞ⧋ āϝ⧇āĻ–āĻžāύ⧇ āĻĒāĻžāĻļāĻžāĻĒāĻžāĻļāĻŋ āϝ⧇āϕ⧋āύ āϚāĻžāϰāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āϝ⧋āĻ—āĻĢāϞ 53 āĨ¤ āĻĒā§āϰāĻĨāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ 3, 19āϤāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ 13āϤāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϰ ā§Ē āϗ⧁āĻŖ āĻāĻŦāĻ‚ 28āϤāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ
37āϤāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϰ 5 āϗ⧁āĻŖ āĻšāϞ⧇ 44āϤāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤ?
50 natural numbers are written in such a way so that sum of any four consecutive | numbers is 53. First number is 3, the 19th number is eight times of 13th number and 28th number is five times f 37th. Find the 44th number.
8. ABC āϏāĻŽāϕ⧋āĻŖā§€ āĻ¤ā§āϰāĻŋāϭ⧁āĻœā§‡ ∠B =90°, ∠C=15° āĻāĻŦāĻ‚ AC = 7āĨ¤ AC āĻāϰ āωāĻĒāϰ P āĻŦāĻŋāĻ¨ā§āĻĻ⧁ āύ⧇āĻ“āϝāĻŧāĻž āĻšāϞāĨ¤ P āĻĨ⧇āϕ⧇ AB āĻ“ AC āĻāϰ āωāĻĒāϰ PX āĻ“ PY āϞāĻŽā§āĻŦ āφāρāĻ•āĻŋāĨ¤ PX.PY >3 āĻšāĻ“āϝāĻŧāĻžāϰ āϏāĻŽā§āĻ­āĻžāĻŦā§āϝāϤāĻž \frac abāϝ⧇āĻ–āĻžāύ⧇ a āĻ“ b āϏāĻšāĻŽā§ŒāϞāĻŋāĻ•āĨ¤ b-a = ?
In triangle ABC, ∠B =90°, ∠C=15° and AC = 7. A point P on AC is taken and then perpendicular lines PX, PY are drawn on AB, AC respectively. The probability of being PX.PY>3 is \frac ab, where a and b are co-prime. b-a = ?

 

Higher Secondary Category

1. □ × 100010001 = 1000300030002
āĻ–āĻžāϞāĻŋ āϘāϰ āĻĒā§‚āϰāĻŖ āĻ•āϰāĨ¤
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2. 32 āϕ⧇ āĻŽā§‹āϟ āĻ•āϤāϗ⧁āϞ⧋ āϧāύāĻžāĻ¤ā§āĻŽāĻ• āĻĒā§‚āĻ°ā§āĻŖāϏāĻ‚āĻ–ā§āϝāĻž āĻĻā§āĻŦāĻžāϰāĻž āĻ­āĻžāĻ— āĻ•āϰāĻž āϝāĻžāϝāĻŧ, āϝāĻžāϤ⧇ āĻ­āĻžāĻ—āĻļ⧇āώ āĻļā§‚āĻ¨ā§āϝ āĻšāϝāĻŧ? How many positive integers are there by which 32 is divisible?
3. 101^2 + 103^2 + 202^2 + 2 × 101 × 103 – 2 × 101 × 202 – 2 × 103 × 202 = ?
4. āύāĻžāĻĢāĻŋāϏ āύāϝāĻŧāϟāĻŋ āĻ•ā§āϰāĻŽāĻŋāĻ• āϏāĻ‚āĻ–ā§āϝāĻž āϝ⧋āĻ— āĻ•āϰ⧇ āϝ⧋āĻ—āĻĢāϞ āĻĒ⧇āϞ 234āĨ¤ āϤāĻžāĻšāϞ⧇ āϐ āύāϝāĻŧāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āĻŽāĻžāĻāĻ–āĻžāύ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤ ?
Nafis found that the sum of nine consecutive numbers is 234. Then what is the middle number of those nine numbers?
5. ABCD āφāϝāĻŧāϤāĻ•ā§āώ⧇āĻ¤ā§āϰ⧇ AB=17āĨ¤ AB āϕ⧇ āĻŦā§āϝāĻžāϏ āϧāϰ⧇ āφāρāĻ•āĻž āĻ…āĻ°ā§āϧāĻŦ⧃āĻ¤ā§āϤ CD āϕ⧇ āĻĻ⧁āχāϟāĻŋ āĻŦāĻŋāĻ¨ā§āĻĻ⧁ P āĻ“ Q āϤ⧇ āϛ⧇āĻĻ āĻ•āϰ⧇āĨ¤ AP=15 āĻšāϞ⧇ ABCD āĻāϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ āĻ•āϤ?
In ABCD rectangle where AB=17. The semicircle drawn by considering AB as diameter intersects CD at P and Q points. If AP=15, then find the area of ABCD.

6. āĻĒāĻžā§āϚāĻžāĻļāϟāĻŋ āϧāύāĻžāĻ¤ā§āĻŽāĻ• āĻĒā§‚āĻ°ā§āĻŖāϏāĻ‚āĻ–ā§āϝāĻžāϕ⧇ āĻĒāĻžāĻļāĻžāĻĒāĻžāĻļāĻŋ āϞ⧇āĻ–āĻž āĻšāϞ⧋ āϝ⧇āĻ–āĻžāύ⧇ āĻĒāĻžāĻļāĻžāĻĒāĻžāĻļāĻŋ āϝ⧇āϕ⧋āύ āϚāĻžāϰāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āϝ⧋āĻ—āĻĢāϞ 53 āĨ¤ āĻĒā§ā§°āĻĨāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ 3, 19āϤāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ 13āϤāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϰ ā§Ē āϗ⧁āĻŖ āĻāĻŦāĻ‚ 28āϤāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ 37āϤāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϰ 5 āϗ⧁āĻŖ āĻšāϞ⧇ 42āϤāĻŽ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ āĻ•āϤ?
50 natural numbers are written in such a way so that sum of any four consecutive numbers is 53. First number is 3, the 19th number is eight times of 13th number and 28th number is five times f 37th. Find the 42th number.
7. āĻāĻ•āϟāĻŋ 100×100 āĻĻāĻžāĻŦāĻž āĻŦā§‹āĻ°ā§āĻĄā§‡āϰ āĻāĻ•āĻĻāĻŽ āύāĻŋāĻšā§‡āϰ āϏāĻžāϰāĻŋāϤ⧇ āĻŦāĻžāĻŽ āĻĻāĻŋāĻ• āĻĨ⧇āϕ⧇ 50 āϤāĻŽ āϘāϰ⧇ āĻāĻ•āϟāĻŋ āϏ⧈āĻ¨ā§āϝ āϰāĻžāĻ–āĻž āĻšāϞāĨ¤ āĻāĻ•āϟāĻŋ āϏ⧈āĻ¨ā§āϝ āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āϏ⧋āϜāĻž āϏāĻžāĻŽāύ⧇ āĻ…āĻĨāĻŦāĻž āϕ⧋āĻŖāĻžāϕ⧁āĻŖāĻŋ āϏāĻžāĻŽāύ⧇ āĻāĻ• āϘāϰ āϝ⧇āϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ āĻāχ āϏ⧈āĻ¨ā§āϝāϟāĻŋ 20 āĻŦāĻžāϰ āϚāĻžāϞāĻž āĻšāϞāĨ¤ āĻ“āχ āĻĻāĻžāĻŦāĻž āĻŦā§‹āĻ°ā§āĻĄā§‡ āϏāĻ°ā§āĻŦā§‹āĻšā§āϚ āĻ•āϤāϗ⧁āϞ⧋ āϘāϰ āφāϛ⧇ āϝ⧇āϗ⧁āϞ⧋ āϏ⧈āĻ¨ā§āϝ⧇āϰ āĻ—āϤāĻŋāĻĒāĻĨ⧇ āĻĒāĻĄāĻŧāϤ⧇ āĻĒāĻžāϰ⧇? āĻāĻ•ā§āώ⧇āĻ¤ā§āϰ⧇ āϏ⧈āĻ¨ā§āϝ⧇āϰ āĻĒā§āϰāĻžāĻĨāĻŽāĻŋāĻ• āĻ…āĻŦāĻ¸ā§āĻĨāĻžāύāĻ“ āĻ—āĻŖāύāĻžāϰ āĻ…āĻ‚āĻļ āĻšāĻŦ⧇āĨ¤
In a 100×100 chess board, a pawn is placed in the lowest row, 50th box from the left. A pawn can only move one box straight or diagonally in forward direction. The pawn is moved for 20 times. What is the maximum number of box where can this pawn be? [Count the initial position too.]

8. ABC āϏāĻŽāϕ⧋āĻŖā§€ āĻ¤ā§āϰāĻŋāϭ⧁āĻœā§‡ ∠B =90°, ∠C=15° āĻāĻŦāĻ‚ AC = 7āĨ¤ AC āĻāϰ āωāĻĒāϰ P āĻŦāĻŋāĻ¨ā§āĻĻ⧁ āύ⧇āĻ“āϝāĻŧāĻž āĻšāϞāĨ¤ P āĻĨ⧇āϕ⧇ AB āĻ“ AC āĻāϰ āωāĻĒāϰ PX āĻ“ PY āϞāĻŽā§āĻŦ āφāρāĻ•āĻŋāĨ¤ PX.PY >3 āĻšāĻ“āϝāĻŧāĻžāϰ āϏāĻŽā§āĻ­āĻžāĻŦā§āϝāϤāĻž \frac abāϝ⧇āĻ–āĻžāύ⧇ a āĻ“ b āϏāĻšāĻŽā§ŒāϞāĻŋāĻ•āĨ¤ b-a = ?
In triangle ABC, ∠B =90°, ∠C=15° and AC = 7. A point P on AC is taken and then perpendicular lines PX, PY are drawn on AB, AC respectively. The probability of being PX.PY>3 is \frac ab, where a and b are co-prime. b-a = ?

 

Set_01_Math Olympiad Regional Question 2016

Set_02_Math Olympiad Regional Question 2016

Set_03_Math Olympiad Regional Question 2016

Set_04_Math Olympiad Regional Question 2016

Set_05_Math Olympiad Regional Question 2016

Set_06_Math Olympiad Regional Question 2016

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