exam Maths Puzzle Numerical Ability

Write the proportion 5 is to 8 as 15 is to 24.

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exam Other Question

If a river flows at a rate of 3mph and a boat travels 60 miles upstream and returns in a total time of 9 hours. How fast would the boat travel be traveling in still water? A roofer earns $24 per hour plus $36 per hour overtime. If he puts in 40 hours of regular time during a certain week and he wishes to earn $1200, how many hours of overtime should he work?