International Maths Olympiad Forum By SOF Olympiad Trainer

Apoorv Raut from Podar International School Jalna, Jalna

Subject :IMO Class : Class 10

The equations representing the given graph is ____.

A 7x + 2y = 11; y – 2x = 3
B 2x + 7y = 11; 5x + (35y/2) = 25
C 3x –7y = 10; 8y – 6x = 4
D 3x –4y = 1; 8y – 6x = 4

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Adhya Sujay Barnwal from Delhi Public School , Kamptee, NAGPUR

Subject :IMO Class : Class 10

A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 9s are wrong and the other digits are correct, then the correct answer would be ________.

A 553681
B 555181
C 555681
D 556581

559981 = 987* 567 352Here we see that when we will multiply 987 * 563 we will get 555681 so the answer will be 555681.

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Rishi Pathak from DPS Panipat Refinery, Panipat

Subject :IMO Class : Class 10

Which of the following is true?
(A)
(B) If A and B are complementary angles, then

A Only (A)
B Only (B)
C Neither (A) nor (B)
D Both (A) and (B)

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paarth anwani from Adarsh Public School, Delhi

Subject :IMO Class : Class 10

The number is 200. add 45. subtract 200. multiply 10

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Imma from Prempeh College, Kumasi

Subject :IMO Class : Class 10

Anyone good at math please help me

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Ritwic Verma from The Shri Ram School Moulsari, New Delhi

Subject :IMO Class : Class 10

State 'T' for true and 'F' for false and select the CORRECT option.
I. If a quadratic polynomial f(x) is a square of a linear polynomial, then its two zeroes are coincident.
II. If a quadratic polynomial f(x) is not factorisable into linear factors, then it has no real zero.
III. If graph of quadratic polynomial ax² + bx + c cuts positive direction of y-axis, then the sign of c is positive.
IV. If fourth degree polynomial is divided by a quadratic polynomial, then the degree of the remainder is 2.

	I	II	III	IV
A	F	F	T	T
B	T	T	T	F
C	F	T	T	F
D	T	T	T	T

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Deeksha Ravi from NIOS, Coimbatore

Subject :IMO Class : Class 10

Find the missing number.

A 5
B 6
C 8
D 12

I'm not sure how to work this question out. Does anybody know how?

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Tanmay Gupta from Vibgyor high, Bangalore

Subject :IMO Class : Class 10

Which of the following is/are correct?

A Product of two irrational numbers is always an irrational number.
B The sum of two irrational numbers is always an irrational number.
C Sum of rational and irrational number is always an irrational number.
D None of these