exam Maths Puzzle Numerical Ability

The sum of the digits of a two-digit number equals 1/7 of the number. If the digits are reversed, the new number is 27 less than the original number. Find the original number.

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exam Other Question

A fruit salad is made up of cantaloupe, strawberries, and bananas. If a salad weighing 135 oz. contains 3oz. of bananas for every oz. of strawberries and has the same number of cantaloupe as strawberries, how many oz. of banana are in the salad? if f(x)=x-5 and g(x)=x^2+3, find f[g(-2)]