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 value of 7√6 x 5√24?

Q.2

In the figure, find the value of CF.




Q.3

In the figure, two men are on the opposite sides of a tower. If the height of the tower is 60 m. Find the distance between them.

Q.4

The average age of 30 girls is 13 years. The average of first 18 girls is 15 years. Find out the average age of remaining 12 girls.

Q.5

If L stands for x, M stands for /, P stands for + and Q stands for -, which one of the following equations is correct?
1 6 P 2 4 M 8 Q 6 M 2 L 3 = ?

Q.6

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.7

Factorise:

x(x2 + y2 −z2) − z(x2 + y2 −z2)

Q.8

What is the quadratic equations whose roots are 3 and 4?

Q.9

Simplify:

x2 − 13x − 42 = (x − 6) (x − 7)

Q.10

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

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Answers to Previous Year Questions from CREST Olympiads:

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

Answers to Previous Year Questions from CREST Olympiads:

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

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