# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 345 - 349 of 1040

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## Question number: 345

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MCQ▾

### Question

Simple interest on a certain amount is of the principal. If the numbers representing the rate of interest in percent and time in years be equal, then time, for which the principal is lent out, is________

### Choices

Choice (4) Response

a.

5.5 years

b.

6.66 years

c.

9 years

d.

6 years

## Question number: 346

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MCQ▾

### Question

What is 40 % of 50%?

### Choices

Choice (4) Response

a.

2.0

b.

0.2

c.

0.02

d.

2.5

## Question number: 347

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MCQ▾

### Choices

Choice (4) Response

a.

A trapezium

b.

c.

A parallelogram

d.

## Question number: 348

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MCQ▾

### Question

Reena bought a car for a certain sum of money. He spent 5 % of the cost on repairs and sold the car for a profit of Rs. 10,000. How much did he spend on repairs, if he made a profit of 10%?

### Choices

Choice (4) Response

a.

3000 Rs.

b.

2380.95 Rs.

c.

5000 Rs.

d.

2250.92 Rs.

## Question number: 349

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MCQ▾

### Question

Given below are the steps of construction of a quadrilateral ABCD, where AB = 3 cm, BC = 6 cm, , which of the following is a wrong step?

(P) Step i: Draw AB = 3 cm.

(Q) Step ii: Draw at A and

(R) Step iii: With B as center and radius BC = 6.5 cm, draw an arc to intersect at C;

(S) Step iv: At C draw such that CZ meets AX at D.

### Choices

Choice (4) Response

a.

Q

b.

R

c.

S

d.

P