exam Maths Puzzle Numerical Ability

andy is 6 years older than tom. the sum of thier ages is 26. how old are they?

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exam Other Question

Simplify (mulitiply)

3 {{{ sqrt (25x-4) sqrt (25x)}}}

Would the answer be something like 1-{{{sqrt (25x)}}} how do we use distributive property to solve 625x(-35)+ (-625)x 65