CREST Mental Maths Olympiad Class 7 Previous Year Papers

Q.1

What is the greatest number which divides 639, 1065 and 1491 exactly?

Q.2

A lodge is in the form of a cuboid of measures 60 m x 40 m x 30 m. How many cuboidal boxes can be stored in it if the volume of one box is 0.08 m³?

Q.3

Solve:
(0.3)³ 

Q.4

A shopkeeper bought a watch for $40 and sold it for $60. What is his profit?

Q.5

After starting to write 24 pages, Ashu completed 25% of his work by evening. How many pages does he still need to write?

Q.6

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.7

If the supplement of an angle is equal to three times its complement, what is the measure of the angle?

Q.8

Find:

Q.9

A family of 8 persons has food for 26 days. After 5 days, 1 person went away. How many days will the remaining food last?

Q.10

Simplify:
12 x 12² - 3²