# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 177 - 183 of 1022

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## Question number: 177

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MCQ▾

### Question

If two supplementary angles differ by, then one of the angle is ________.

### Choices

Choice (4) Response

a.

b.

62°

c.

d.

Both a. and b. are correct

## Question number: 178

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MCQ▾

### Question

If two supplementary angles differ by, then one of the angle is ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

128°

## Question number: 179

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MCQ▾

### Question

If two supplementary angles differ by, then one of the angle is ________.

### Choices

Choice (4) Response

a.

b.

c.

115°

d.

105°

## Question number: 180

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MCQ▾

### Question

In a group of animal and birds, in addition to 15 dogs there are 9 cows and 4 peacocks with some parrot. If the total number of feet be 86 more than the number of heads, Find the number of parrots.

### Choices

Choice (4) Response

a.

12

b.

20

c.

23

d.

10

## Question number: 181

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MCQ▾

### Question

John was asked to multiply a number by 14. He instead multiplied the number by 41 and got the answer 378 more than the correct answer. The number to be multiplied was ________.

### Choices

Choice (4) Response

a.

42

b.

15

c.

12

d.

14

## Question number: 182

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MCQ▾

### Question

Ravi has to secure marks to pass. He got 68 marks and failed by 44 marks. The maximum marks are ________.

### Choices

Choice (4) Response

a.

250

b.

200

c.

450

d.

300

## Question number: 183

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MCQ▾

### Question

In two- digit number, ten’s digit is twice the unit’s digit. The number formed by interchanging the digits is 36 less than the original number. The original number is ________

### Choices

Choice (4) Response

a.

48

b.

70

c.

72

d.

84