CREST Mental Maths Olympiad Class 7 Previous Year Papers

Q.1

A designer needs 3/5 th of a metre of cloth to make a fancy dress for children taking part in a dance performance. If 200 children are taking part, how much cloth will the designer need?

Q.2

If x = 3 and y = 5, find x² + y².

Q.3

Study the graph carefully and answer the question given below (Profit is taken as the % of expenditure.)
What would be the ratio of Company B's 2020 income to that of Company A's 2017 income?

Q.4

Two supplementary angles are in the ratio 3 : 7, find the angles.

Q.5

A bicycle travels a distance of 20 km in 1 hour. How long will it take to travel a distance of 80 km at the same speed?

Q.6

A shopkeeper bought a book for $150 and sold it for $200. What is his profit or loss?

Q.7

Solve:
(9 + 4)² + 6⁵ / 36²

Q.8

Solve :
3/7 + (-6/11) + (-8/21) + (5/22)

Q.9

Solve:
(-8) * [(-2) + 7] = _______

Q.10

What is the compound interest on a principal of $10,000 at a rate of 8% per annum for 3 years, compounded annually?