exam Maths Puzzle Numerical Ability

Find three consecutive even intergers such as the 3 interger is 3 times the first.

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exam Other Question

I need a proof for the HL theorem. It took 6 hours to travel to town, and it took up to 8 hours to travel back, becasue your return trip speed was 10mph less than the outgoing speed. What was your return trip speed?

Please assist,I have difficulty with word problems.....
Thanks!