CREST Mental Maths Olympiad Class 12 Previous Year Papers

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Syllabus:

Number System
Algebra
Comparing Quantities
Geometry
Mensuration
Playing with Numbers
Data Handling

Q.1 Q.2 Q.3 Q.4 Q.5 Q.6 Q.7 Q.8 Q.9 Q.10

Q.1

What is the diameter of a circle with an area of 121π?

Q.2

Which number is divisible by 17?
123445, 133365, 32376, 245346

Q.3

Evaluate:
81 x 9 + 3x 3

Q.4

In the figure, ABCD is a cyclic quadrilateral. Side CD is produced to both sides so that ∠BCP = 110o and ∠ADQ = 95o. What is the sum of angles ∠A and ∠B?

Q.5

Simplify:

3/5th of 24% of 500 - 32 = ?

Q.6

Convert the recurring decimals to fractions:



Q.7

If + means /, - means +, x means -, and / means x, then 8 / 4 - 6 + 3 x 4 = ?

Q.8

∆XYZ and ∆PYZ are two isosceles triangles on the same base YZ. If ∠P = 120o and ∠XYP = 40o. Find x.

Q.9

How many years will it take for the amount of $600 to yield $120 as interest at 10% per annum of simple interest?

Q.10

What will come in place of question mark (?) in the number series?
6, 11, 21, 36, 56, ?

Your Score: 0/10

Answers to Previous Year Questions from CREST Olympiads:

Q.1bQ.2cQ.3bQ.4bQ.5dQ.6aQ.7bQ.8aQ.9cQ.10c

Answers to Previous Year Questions from CREST Olympiads:

Q.1 : b | Q.2 : c | Q.3 : b | Q.4 : b | Q.5 : d | Q.6 : a | Q.7 : b | Q.8 : a | Q.9 : c | Q.10 : c

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