# IMO- Mathematics Olympiad Class 7: Questions 507 - 512 of 1012

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## Question number: 507

MCQ▾

### Question

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 number: 508

MCQ▾

### Question

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.

352

b.

215

c.

192

d.

160

## Question number: 509

MCQ▾

### Question

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.

60

c.

72

d.

49

## Question number: 510

MCQ▾

### Question

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. 5000

b.

Rs. 4500

c.

Rs. 5500

d.

Rs. 1000

## Question number: 511

MCQ▾

### Question

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.

50

c.

40

d.

37

## Question number: 512

MCQ▾

### Question

Each of two groups of employees has 70 people. If of the first group are male employees and of the second group are male employees, how many more male employees of the first group than of the second group?

### Choices

Choice (4) Response

a.

12

b.

14

c.

15

d.

20

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