CREST Mental Maths Olympiad Class 9 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	If a = 12 cm, b = 13 cm, and c = 15 cm, what is the semi-perimeter of the triangle?

Q.2	If x and y are the two digits of the number 883xy such that this number is divisible by 80, then x + y = ?

Q.4	What will be the volume of tank whose length is 10 m, breadth 8 m and height 6 m?

Q.5	Which of the following is a non-terminating decimal?

Q.6	What are the two roots of the equation (x + 4) (x – 5) = 0?

Q.7	In a ∆PQR, PS = SR = SQ and ∠PRS = 55°. Find ∠SQP.

Q.8	Five years ago, the average age of P and Q was 15 years. Now, the average age of P, Q and R is 20 years. What would be the age of R after 10 years?

Q.9	Angles of a linear pair are in the ratio 8 : 1. What is the degree of measure of both angles?

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Answers to Previous Year Questions from CREST Olympiads:

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

Answers to Previous Year Questions from CREST Olympiads:

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