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

One year ago, the ratio of Harry and Sam age was 6 : 7 respectively. Four years hence their ratio would become 7 : 8. How old is Sam?

Q.2

What will come in place of question mark (?) in the following number series?
2, 3, 5, 8, 12, ?

Q.3

Ten men can do a piece of work in 12 days. How many men are needed to complete the work in 20 days?

Q.4

What is the value of 7√6 x 5√24?

Q.5

Find the area of a triangle whose sides are 50 m, 78 m, 112 m respectively.

Q.6

A wire is in the shape of a square of side 44 cm. If it is refolded into a circular ring, find the radius of the ring.

Q.7

Simplify:

17/29 x 8/102 x 48/27 x 3/2 = ?

Q.8

30 men can plant 60 trees in 5 hours. If 5 men leave the job, how many trees will be planted in 10 hours?

Q.9

Factorise:

m - 1 - (m - 1)2 + ax - a

Q.10

$600 are invested at 5% simple interest p.a. In how much time will it double itself ?

Your Score: 0/10

Answers to Previous Year Questions from CREST Olympiads:

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

Answers to Previous Year Questions from CREST Olympiads:

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

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