1.

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

Answer» Correct Answer - 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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