exam Maths Puzzle Numerical Ability

Can you please help me solve: A 5 in. by 7 in. photograph is surrounded by a frame of uniform width. The area of the frame equals the area of the photograph. Find the width of the frame.

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exam Other Question

log5 (to the power of 5) (x+3)+log5(big 4)=log5(big 36)

once again its:

log5(x+3)+log5 4= log5 36 smith has 3 times as much money invested at 8% bonds as he has in stocks paying 9.5%. how much does he have invested in each if his yearly income from the investments is $6365 ?