IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 345 - 349 of 1042

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Question 345

Question

MCQ▾

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 346

Question

MCQ▾

What is 40 % of 50 % ?

Choices

Choice (4)Response

a.

2.0

b.

0.2

c.

0.02

d.

2.5

Question 347

MCQ▾

Choices

Choice (4)Response

a.

A trapezium

b.

c.

A parallelogram

d.

Question 348

Question

MCQ▾

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 ₹ 10,000. How much did he spend on repairs, if he made a profit of 10 % ?

Choices

Choice (4)Response

a.

3000 ₹

b.

2380.95 ₹

c.

5000 ₹

d.

2250.92 ₹

Question 349

Question

MCQ▾

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