how to solve mathematics mcq with short prieod of time

by using any short cut method

Your Answer

Calculate roughly and find approximate/nearabout answer mentally without solving on paper.  For this you have to be confident in (a) Square up to 30.  (b) Cube up to 15. (c) Finding Square Root by short cut methods.
More over it needs much practice and hard work with concentration. Practise this and get the amazing results.

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class 10
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class 10