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

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 = 120^o and ∠XYP = 40^o. 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, ?

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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

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