exam Maths Puzzle Numerical Ability

.... (x-8)
3 ----- +7 = 34
.... 5

It's suppose to be (x-8) over 5

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exam Other Question

One leg of a right triangle is 2 inches smaller than the hypotenuse. The other leg is 5 inches long. What are the lengths of the unknown leg and hypotenuse?

Not sure if I set it up right.

(x+2)^2 + 5^2 = x^2 A jar of dimes and quarters contains $1.25. There are 13 coins in all. How many of each are there?