exam Maths Puzzle Numerical Ability

A cashier has a total of 126 bills, made up of fives and tens. The total value of the money is $840. How many of each kind does he have?

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exam Other Question

In a right triangle , the shorter leg is 6 less than the longer leg. The hypotenuse is 6 less than twice the shorter leg. Set up a quadratic equation and use it to determine the lenghth of the hypotenuse of the right triangle. Find all whole numbers x such that GCD(24,x)=1 and 1 ≤ x ≤ 24.