exam Maths Puzzle Numerical Ability

A number increased by 20% is 16. Find the number.

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exam Other Question

(4 / x^6) ^3 I need to simplify it and I am pulling my hair out. Maybe I am too old for this! Can you possibly show me a detailed explanation? Brandon is 3 times as old as Caitlan. 18 years ago, Brandon was 6 times as old as Caitlan was 18 years ago. How old are they now?