exam Maths Puzzle Numerical Ability

find a length and a width for a rectangle with each given area
56 square feet?

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exam Other Question

three man can finish a painting job in 8 days. This job can be finished by 5 women in 6 days and by 8 boys in 10 days. how long will it take 1 man 2 women and 3 boys working together?

Thanks! I will make a donation to you for your help.
Anybody know this one

x^2+4x+1>0

thanks for your time