exam Maths Puzzle Numerical Ability

Please help! In the following all variables represent positive real numbers. Perform the indicated opersations and express your answer in simplified form.

Radical 14xy^2 Radical 3xy^3

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exam Other Question
1=0.4x-0.6x-5 Thomas drove 60 kilometers at a constant rate of speed. If he had driven 40 kph faster, he would have traveled the same distance for 24 minutes less. How fast did he drive?