book Maths Puzzle Numerical Ability

If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?

Read Solution (Total 0)

book Other Question

please reduce the fraction, w2 + 5w + 6 / w2 - w - 12

A. w-2/w-4
B. w+2/w-4
C. w+2/w+4
D. w-2/w+4
Can someone tell me how to solve the following problem:
7(2+3x)+8