IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 181 - 188 of 1059

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Question number: 181

» Playing with Numbers

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MCQ▾

Question

693 is divisible by

Choices

Choice (4)Response

a.

3 & 9

b.

3

c.

9

d.

6

Question number: 182

» Number Systems

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Question

Rohan’s monthly salary is Rs. 18000. He spends Rs. 2050 for his home expenses, Rs. 1590 for purchasing clothes, Rs. 870 for purchasing groceries, milk, etc. , Rs. 1900 for purchasing medicine and pays a rent of Rs. 4500 in a particular month. How much does he save in this month?

Choices

Choice (4)Response

a.

Rs. 6870

b.

Rs. 8609

c.

Rs. 7050

d.

Rs. 7090

Question number: 183

» Playing with Numbers

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MCQ▾

Question

Prime factorization of 13915 is

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 184

» Playing with Numbers

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Question

Number of prime and co-prime numbers from 80 to 100 are

Choices

Choice (4)Response

a.

7

b.

4

c.

5

d.

3

Question number: 185

» Number Systems

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Question

Product of two integer is If one of the integers is , then the other is

Choices

Choice (4)Response

a.

-9

b.

1

c.

0

d.

19

Question number: 186

» Playing with Numbers

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Question

Observe the following patterns. Then find the sum of .

………………………………………………………. ‎……………………………………………………….

Choices

Choice (4)Response

a.

180

b.

150

c.

320

d.

200

Question number: 187

» Number Systems

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Question

The expression is equivalent to , uses the ________ property.

Choices

Choice (4)Response

a.

Commutative

b.

Associative

c.

Closure

d.

Identity

Question number: 188

» Number Systems

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Question

Multiply the unit’s place of the number obtained by reversing the digits of the number 78923 with the hundred’s place of the number obtained by interchanging the digits in the unit’s place and the thousand’s place of the same number, we get________.

Choices

Choice (4)Response

a.

16

b.

54

c.

64

d.

63

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