book Maths Puzzle Numerical Ability

Sammy has 4/9 of a share of stock. He gave 1/18 of what he had to each of his grandchildren. How many grandchildren does he have? (He gices away the entire 4/9 of the share of his stock).

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book Other Question

Find two consecutive whole numbers such that the sum of their squares is 130

n(n+2)=130? Walter ia a waiter. he earns a daily wage of $50, plus tips that are equal to 15% of the total dinners he serves. what was the total cost of the dinners he served if he earned $170 on tuesday?