IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 153 - 159 of 1059

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Question number: 153

» Playing with Numbers

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MCQ▾

Question

The HCF of two numbers is 54. If one number is 27 and another is 162, then the LCM is

Choices

Choice (4) Response

a.

81

b.

51

c.

85

d.

31

Question number: 154

» Playing with Numbers

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MCQ▾

Question

Prime factorization of 5775 is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 155

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MCQ▾

Question

The numbers which have only two factors (1 and the number itself) are called as

Choices

Choice (4) Response

a.

Prime

b.

Composite

c.

Even

d.

Question does not provide sufficient data or is vague

Question number: 156

» Number Systems

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Question

Multiplying three negative integers with a positive integer gives a ________ result.

Choices

Choice (4) Response

a.

Positive

b.

0

c.

Negative

d.

None of the above

Question number: 157

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MCQ▾

Question

There are 153 apples and 119 oranges. These fruits are to be arranged in heaps containing the same number of fruits. Then the greatest number of fruits possible in each heap is

Choices

Choice (4) Response

a.

23

b.

15

c.

17

d.

20

Question number: 158

» Playing with Numbers

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MCQ▾

Question

Number of prime numbers from 1 to 50 are

Choices

Choice (4) Response

a.

15

b.

12

c.

20

d.

18

Question number: 159

» Playing with Numbers

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MCQ▾

Question

The HCF and LCM of two numbers is 16 and 192 respectively. If one of the numbers is 64, the other one is

Choices

Choice (4) Response

a.

24

b.

45

c.

48

d.

72