Latest exam Aptitude Question SOLUTION: A roofing contractor estimates that he can shingle a house in 20 hours and that his assistant can do it in 30 hours. How long will it take them to shingle the house working togethe

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(#M40093839) EXAM Numerical Ability question Keep an EYE

A roofing contractor estimates that he can shingle a house in 20 hours and that his assistant can do it in 30 hours. How long will it take them to shingle the house working together? If you could explain how to do it, that would be great. Thanks.

Asked In exam (9 years ago)

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