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

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## Question 177

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### Question

MCQ▾

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 178

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### Question

MCQ▾

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

### Choices

Choice (4)Response
a.
b.
c.
d.128°

## Question 179

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### Question

MCQ▾

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

### Choices

Choice (4)Response
a.
b.
c.115°
d.105°

## Question 180

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### Question

MCQ▾

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 181

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### Question

MCQ▾

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 182

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### Question

MCQ▾

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 183

Edit

### Question

MCQ▾

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