CREST Mental Maths Olympiad Class 11 Previous Year Papers

Q.1

What will come in place of question mark (?) in the following equation? (approx.)
2439.97 – 1234.01 + 401.99 = ? + 989.99

Q.2

In the figure, find the area of ∆ABC is which ∠ACB = 45^o, and BC = 8 cm.

Q.3

Which number is divisible by 14?
125548, 271726, 678724, 253546

Q.4

Fill in the blank with the appropriate choice:
1, 5, 9, 13, ____

Q.5

Three cubes whose sides are 6 cm, 8 cm and 10 cm. They are melted and form a cube. Find the volume of that cube.

Q.6

Which number is divisible by 2 and 8?
15562, 36992, 53266, 658782

Q.7

The true discount on a bill due 10 months at 15% per annum is $225. What is the amount of bill?

Q.8

Find the roots of the equation:
3x² + 15x + 18 = 0

Q.9

In the given figure, P || Q, what is the value of x?

Q.10

Sam invested an amount of $ 8000 at a compound interest rate of 8% per annum for a period of three years. How much amount will Sam get after 2 years?