# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 863 - 868 of 1022

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## Question number: 863

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MCQ▾

### Question

A coin is tossed 80 times and head is obtained 30 times. On tossing a coin at random, the probability of getting a head is ________.

### Choices

Choice (4) Response

a.

0

b.

c.

d.

1

## Question number: 864

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MCQ▾

### Question

The value of , when and is ________.

### Choices

Choice (4) Response

a.

b.

c.

0.04132

d.

0.004032

## Question number: 865

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MCQ▾

### Question

A die is tossed 50 times and the number 5 is obtained 25 times. Now, a dice is tossed at random, then the probability of getting the number 5 is ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 866

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MCQ▾

### Question

Calculate the area of the shaded region of the following figure. ABCD is a rectangle having length 40 cm, breadth 30 cm. E, F and G are midpoints of AB, CD and AD respectively. Image of a Rectangle Having Triangular Shaded Part in It Showing an image of a rectangle having triangular shaded part in it, so find the area of the shaded region

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 867

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MCQ▾

### Question

The area of two circles are in the ratio 64: 81. Then the ratio of their circumference is ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 868

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MCQ▾

### Question

One side of a parallelogram is 3600 cm and its area is 432 . The corresponding altitude is ________.

### Choices

Choice (4) Response

a.

12 decameter

b.

12 dm

c.

12 m

d.

12 cm