exam Maths Puzzle Numerical Ability

Hi. I have taken a certification test this past weekend and want to know if I got the answer to the problem below correct or not. Thanks!

(3+1)
______
(6+4)^2

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exam Other Question

Simplify the radical expressions. Assume that all variables represent positive real numbers

/48 + /147
write 5c^3w/2bd^3+3z^2/10c^3d as a single expression