exam Maths Puzzle Numerical Ability

The cost of purchasing incandescent bulbs for use over a 9750-hour peroid is $9.75. The energy cost for incandescent bulbs over this peroid is $73. The cost of one equivalent fluor

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exam Other Question

john traveled 40 mph to his friends house
on the return trip back home he traveled 45 mph
It took him 4hrs round trip
Question: What was the total distance traveled?

Thank you two cars leave town at the same time going in the same direction. One travles at 50 mph and the other travels at 70 mph. In how many hours will they be 60 miles apart?