book Maths Puzzle Numerical Ability

Mr. X biked 2.5 hrs up a mountain. Rested for 30 minutes. Biked down in 1.5 hrs. How far did he bike, if his rate of ascent was 3 km/hr less than his rate of decent?

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Geometry. The length of a rectangle is 2 in. more than twice its width. If the
perimeter of the rectangle is 34 in., find the dimensions of the rectangle.
Your cousin is 26 yrs older than your sister. The product of their ages is 560. How old is your sister?