IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 192 - 199 of 1022

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Question 192

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Question

MCQ▾

The present age of A is twice that of B. 20 years from now, age of A will be times that of B. The present ages of A and B (in years) respectively, is ________.

Choices

Choice (4)Response
a.30,20
b.10,20
c.20,30
d.20,10

Question 193

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Question

MCQ▾

The average of 11, andis. The value of X is ________

Choices

Choice (4)Response
a.17
b.21
c.15
d.14

Question 194

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Question

MCQ▾

The sum of 6 consecutive integers is 75. Then the smallest among them is ________.

Choices

Choice (4)Response
a.10
b.14
c.19
d.16

Question 195

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Question

MCQ▾

The total cost of two books is Rs. 420. If the prize of first book is of the second book then the prize of second book is ________.

Choices

Choice (4)Response
a.Rs. 250
b.Rs. 280
c.Rs. 245
d.Rs. 220

Question 196

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Question

MCQ▾

, then find the value of X.

Choices

Choice (4)Response
a.1
b.
c.
d.

Question 197

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Question

MCQ▾

The age of A and B are in ratio 7: 5 after 6 years, their ages will be in the ratio 9: 7 the sum of present age is ________

Choices

Choice (4)Response
a.10 years
b.36 years
c.9 years
d.24 years

Question 198

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Question

MCQ▾

What is the value of that makes the following expression true?

Choices

Choice (4)Response
a.12
b.-12
c.4
d.-4

Question 199

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Question

MCQ▾

When the amount was distributed among 12 boys, each of them got Rs. 150 more than the amount received by when the same amount is distributed equally among 20 boys. What is the amount?

Choices

Choice (4)Response
a.Rs. 3900
b.Rs. 4500
c.Rs. 4520
d.Rs. 3960