exam Maths Puzzle Numerical Ability

A painter can do a given job in 6 hours. Her helper can do the same job in 10 hours. The painter begins the work and after two hours is joined by the helper. In how many hours will they complete the job?

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exam Other Question

Solve the following inequality and express the solution as an interval: -18/6x-42>0: Solve the following inequality and express the solution as an interval:
-18/6x-42>0. Possibl When the sun starts to cross the horizon, the surface temperature was 7 degrees at 6 am. As the day wore on, the temperature went up by 2.5 degrees per hour. By sundown, at 7 pm, what was the final daytime temperature?