CREST Mental Maths Olympiad Class 12 Sample Paper

Master complex mental calculations with the CREST Mental Maths Olympiad Sample Paper for Class 12. This sample paper is tailored for advanced learners aiming to boost speed, accuracy, and logical reasoning in high-level math competitions.

What's Inside the Class 12 CREST Mental Maths Sample Paper?

• High-difficulty questions from Comparing Quantities, Mensuration and Data Handling etc.
• Time-based practice for quick and strategic thinking
• Patterned after the official Class 12 CREST Mental Maths Olympiad format

Download the Class 12 CREST Mental Maths Olympiad Sample Paper PDF to begin focused preparation and perform confidently in Olympiad-level challenges.

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Syllabus:

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

Sample Paper Marking Scheme Free Study Material

Sample Questions

Q.1

Q.2

Q.3

Q.4

Q.5

Q.6

Q.7

Q.8

Q.9

Q.10

Q.1	After 10 years, the age of a father will be twice that of his son. Five years ago, he was 5 times as old as his son. What is the age of father?
	a) 28 years		b) 30 years
	c) 32 years		d) 25 years

Q.2	If the height of the frustum is 4 cm and the radii of two bases are 3 cm and 6 cm respectively, find the slant height of the frustum.
	a) 4 cm		b) 8 cm
	c) 7 cm		d) 5 cm

Q.3	The marked price of a radio is $480. The shopkeeper allows a discount of 10% and gains 8%. If no discount is allowed, find his gain%.
	a) 17%		b) 22%
	c) 20%		d) 25%

Q.4	What will come in place of question mark (?) in the diagram?
	a) 135		b) 154
	c) 144		d) 125

Q.5	What will come in place of question mark (?) in the following equation? (approx.) 1599 × 199 ÷ 49 – 1398 + 3877 = ?
	a) 9000		b) 9500
	c) 10000		d) 10500

Q.6	Evaluate: (1331 ÷ 121) + 25
	a) 43		b) 45
	c) 47		d) 49

Q.7	Simplify: x2 − 13x − 42 = (x − 6) (x − 7)
	a) 3(2x − 3) (x + 8)		b) (2x − 3) (x + 4)
	c) (2x − 3) (3x + 8)		d) 3(x − 3) (x + 8)

Q.8	If a sphere of diameter 12 cm is melted and drawn into a wire of diameter 0.2 cm, find the length of the wire.
	a) 256 m		b) 288 m
	c) 264 m		d) 225 m

Q.9	What is the quadratic equations whose roots are 3 and 4?
	a) x² – 7x + 12 = 0		b) x² – 3x + 4 = 0
	c) x² – 6x + 9 = 0		d) x² – 2x - 8 = 0

Q.10	If + means /, - means +, x means -, and / means x, then 8 / 4 - 6 + 3 x 4 = ?
	a) 26		b) 30
	c) 28		d) 35

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