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Varun secured x marks in Maths and Rahul...

Varun secured x marks in Maths and Rahul secured `x^2` marks in Maths. The product of their marks was 729. Find their marks.

A

`3,243`

B

`9,81`

C

`27,27`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Marks secured by Varun =x.
Marks secured by Rahul `=x^2`.
Given `x.x^2=729`.
`x^3=729`
`x^3=9^3`
`therefore x =9`
Marks securd by Varun `=x=9`
Marks secured by Rahul `=x^2=9^2=81`
Hence , the correct option is (b).
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