exam Maths Puzzle Numerical Ability

If four out of five doctors prefer fast food, then at a convention of 445 doctors, how many prefer fast food?

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exam Other Question

If tim leaves at 10 am traveling down a road at 16 mph. And then at 10:30 his sister leaves traveling down the same road at 36 mph. how long will it take the sister to catch up? Draw the graph of a line with y-intersept 5 and slope of 7/5.