CREST Mental Maths Olympiad Class 10 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

Find the roots of the given equation:
x+ 5x + 6 = 0

Q.2

What will come in place of question mark (?)?
4, 9, 16, 25, ?

Q.3

In the given figure, find x and y.



Q.4

What should be subtracted from (x + y)2 to get (x2 + y2)?

Q.5

Study the table carefully and answer the question:
In which of the following banks did the disbursement of loans continuously increase over the years?

Loan disbursed by Five banks
(Value in 10 million)
Years
Banks 2018 2019 2020 2021 2022
A 18 23 45 30 70
B 27 33 18 41 37
C 29 29 22 17 11
D 31 16 28 32 43
E 13 19 27 34 42
Total 118 120 140 154 203

Q.6

Travelling at 4/7 of his usual speed, a man gets late by 9 min. What time does he take when he travels at his usual speed?

Q.7

Find:
16 + 8 / 4 – 2 × 3

Q.8

Find the probability of getting an even number between 10 and 25.

Q.9

Study the table and answer the question:
During which year did the 'Net Profit' exceed $100 million for the first time?

Financial Statement of a Company Over the Years(million)
Year Gross Turnover $ Profit before interest and depreciation Interest $ Depreciation $ Net Profit $
2016-17 1380.00 380.92 300.25 69.90 10.67
2017-18 1401.00 404.98 315.40 71.12 18.46
2018-19 1540.00 520.03 390.85 80.02 49.16
2019-20 2112.00 599.01 444.44 88.88 65.69
2020-21 2520.00 811.00 505.42 91.91 212.78
2021-22 2758.99 920.00 600.20 99.00 220.80

Q.10

300 m from the foot of a cliff on the level ground, the angle of an elevation of the top of a cliff is 30o. Find the height of this cliff.

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Answers to Previous Year Questions from CREST Olympiads:

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

Answers to Previous Year Questions from CREST Olympiads:

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

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