exam Maths Puzzle Numerical Ability

Vicki is 1/3 as old as her cousin, chris, plus 5 years. Vicki is 14 years old. how old is chris?

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exam Other Question

In a right triangle, the hypotenuse is 1 foot more than twice the shortest side. The other side is 1 foot less than twice the shortest side. What is the length of the shortest side? i have a triangle and one side is 28 ft., the other 25 ft. and i need to find the measurement of the third side which is also the longest side