exam Maths Puzzle Numerical Ability

If Saliu can paint a house in 8 hours, and Yemi can paint the same house in 16 hour,Bobo can paint the same house in 5 hours, how long will it take for all of them to paint the house together?

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exam Other Question
PUT THESE EQUATIONS IN SLOPE-INTERCEPT AND/OR FUNCTION FORM


4x+y=7 y=6+x 8-5(4-3x)=2(4-x)-8x