IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 166 - 172 of 1059

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Question number: 166

» Playing with Numbers

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MCQ▾

Question

Find the smallest number which will divide the greatest 3-digit number and the greatest 5-digit number exactly.

Choices

Choice (4)Response

a.

8

b.

7

c.

9

d.

3

Question number: 167

» Number Systems

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MCQ▾

Question

If positive sign precedes a bracket the sign of the terms inside the bracket will ________ when the bracket is removed.

Choices

Choice (4)Response

a.

Depends on the bracket

b.

Be 0

c.

Change

d.

Not change

Question number: 168

» Number Systems

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MCQ▾

Question

If a, b and c are whole numbers such that a = b and c 0 and c > 0, then

Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 169

» Playing with Numbers

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MCQ▾

Question

Which of the following is a perfect square?

Choices

Choice (4)Response

a.

36 & 81

b.

37

c.

81

d.

36

Question number: 170

» Playing with Numbers

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MCQ▾

Question

A, M, T, I represent different non-zero digits, It is given that A + M + T + I – 11

A + M + I – 10

A + M – 1

Further in the following addition only one digit is given.

Image showing the addition

Image Showing the Addition

The sum will be?

Choices

Choice (4)Response

a.

Sum is 35722292

b.

Sum is 35725734

c.

Sum is 35725792

d.

Sum is 34425792

Question number: 171

» Playing with Numbers

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MCQ▾

Question

2592 is divisible by

Choices

Choice (4)Response

a.

8

b.

6

c.

3

d.

All a. , b. and c. are correct

Question number: 172

» Playing with Numbers

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MCQ▾

Question

The two numbers which have only 1 as their common factor are called

Choices

Choice (4)Response

a.

Twin primes

b.

Even numbers

c.

Composite

d.

Co-primes

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