book Maths Puzzle Numerical Ability

The lenght of a rectangle is (3x) yards and its width is (x+2) yards. For what value of x will the perimeter of the rectangle be 40 yards.

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book Other Question

log2 x -log2 3=log 2(2x-5) Cindy found a new shoe store that was having an introductory special of 25% off every shoe in the store. If Cindy spent $247, what was the origianl price of the shoes?
24700/75%