Helping your child prepare for the CREST Mental Maths Olympiad Class 9? Practising past question papers is a smart way to strengthen mental calculation skills and gain confidence before the exam.
Download the Class 9 CREST Mental Maths Olympiad Previous Year Paper PDF and support your child's practice for better results!
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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 |
A shopkeeper marks his goods 20% above C.P. but allows a 30% discount for cash. What is his net loss? |
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Q.2 |
In the given figure, PQRS is a rectangle. Find PR + QS. ![]() |
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Q.3 |
In a school, the average age of students is 6 years, and the average age of 12 teachers is 40 years. If the average age of the combined group of all the teachers and students is 7 years, then the number of students is: |
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Q.4 |
A sum of money becomes four times in 20 years at simple interest. Find the rate of interest. |
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Q.5 |
What is the measure of the angle if its supplementary angle measures 98o? |
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Q.6 |
Jack is 15 years elder than Richard. If 5 years ago, Jack was 3 times as old as Richard, then find Jack’s present age. |
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Q.7 |
Find the value of (125)2/9. |
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Q.8 |
Study the pie chart carefully to answer the following question: ![]() |
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Q.9 |
In the given figure, ∠DAC = 30°, ∠CBD = 40°, ∠ADB = y°, and ∠ACB = x°. Find the difference between angles y° and x°. ![]() |
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Q.10 |
The cost of an article including the sales tax is $616. The rate of sales tax is 10%, if the shopkeeper has made a profit of 12%, then find the cost price of the article. |
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Answers to Previous Year Questions from CREST Olympiads:
Q.1 : d | Q.2 : b | Q.3 : d | Q.4 : c | Q.5 : a | Q.6 : c | Q.7 : a | Q.8 : b | Q.9 : b | Q.10 : d