# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 80 - 86 of 1042

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## Question 80

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### Question

MCQ▾

Archana’s age after 15 years wii be 5 times his age 5 years back. What is the present age of archna?

### Choices

Choice (4)Response
a.5 years
b.12 years
c.20 years
d.10 years

## Question 81

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### Question

MCQ▾

The sum of two numbers is 12 and difference of their squares is 12. The difference of the numbers is

### Choices

Choice (4)Response
a.2
b.0
c.1
d.3

## Question 82

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### Question

MCQ▾

Two years ago, Sunil was four times as old as his son and two years hence, twice his age will be equal to six times that of his son. Then the present age of Sunil is_.

### Choices

Choice (4)Response
a.30 years
b.34 years
c.29 years
d.32 years

## Question 83

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### Question

MCQ▾

The perimeter of a rectangle is numerically equal to the area of rectangle. If length of rectangle is cm, then its width is_.

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 84

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### Question

MCQ▾

The sum of the ages of a man and his wife is 77yrs. The man is 17 years older than his wife. How old is the man?

### Choices

Choice (4)Response
a.40 years
b.47 years
c.35 years
d.44 years

## Question 85

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### Question

MCQ▾

Solution of the equation is_.

### Choices

Choice (4)Response
a.
b.
c.1
d.

## Question 86

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### Question

MCQ▾

Two angles in a triangle in the ratio 1: 3. If the sum of these angles is equal to the third angle, then the third angle is_.

### Choices

Choice (4)Response
a.
b.
c.
d.