# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 507 - 511 of 1022

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## Question 507

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### Question

MCQ▾

A library has 52 video-tapes that can be checked out. On Monday the librarian counted 17 video-tapes still on the shelf. How many video-tapes were checked out from the library?

### Choices

Choice (4)Response
a.44
b.45
c.35
d.69

## Question 508

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### Question

MCQ▾

The ratio of computers to mobiles in a shop is 6: 5. There are 32 fewer mobiles than computers. What is the total number of mobiles and computers in the shop?

### Choices

Choice (4)Response
a.192
b.160
c.352
d.215

## Question 509

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### Question

MCQ▾

Ram and his mom were baking cupcakes. The recipe calls for one egg for every dozen cupcakes. Ram finds five eggs in his refrigerator and makes a chart to see how many cupcakes he can make.

 Eggs 1 2 3 4 5 Cupcakes 12 24 36 48 -

What is the missing value in the chart?

### Choices

Choice (4)Response
a.17
b.49
c.60
d.72

## Question 510

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### Question

MCQ▾

Ravi has a total of Rs. 25,000. He spends 20 % of his money on books. How many rupees does he spend on books?

### Choices

Choice (4)Response
a.Rs. 1000
b.Rs. 5500
c.Rs. 5000
d.Rs. 4500

## Question 511

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### Question

MCQ▾

In an office, there are 72 employees. The ratio of female to male is 3: 5. How many male are there in the office?

### Choices

Choice (4)Response
a.45
b.40
c.50
d.37