CREST Mental Maths Olympiad Class 11 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.2	A man sold two watches at $450 each. He sold one at a loss of 15% and the other at a gain of 15%. What is the total loss or gain percentage?

Q.4	In the adjoining figure, chord AB is at a distance of 5 cm from centre O of the circle. Find radius of circle if length of the chord is 24 cm.

Q.5	The average salary of 15 persons is $5,500. If the salary of one person is added, the average increase to $5,700. What is the salary of this one person?

Q.6	Find the roots of the equation: 3x² + 15x + 18 = 0

Q.8	The volume of the right circular cylinder is 792 cm³, height of the cylinder is 7 cm. Find the radius.

Q.9	In the figure, find the area of ∆ABC is which ∠ACB = 45^o, and BC = 8 cm.

Q.10	Fill in the blank with the appropriate choice: 1, 5, 9, 13, ____

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Answers to Previous Year Questions from CREST Olympiads:

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

Answers to Previous Year Questions from CREST Olympiads:

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