A is thrice as fast as b and together can do work in 21days
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A= 3x
days=21
B=21÷3
=7 days
days=21
B=21÷3
=7 days
Answered by
1
If B can do x amount of work in 21 days then A can 3x amount of work in 21 days.
Solve for x: A + B = 21 days therefore 3x + x = 21 days
4x = 21 days
x = 21/4 days
x = 5 1/4 days
If B is not there then A has to do their work and B's work therefore it will take A 21 days + 5 1/4 days = 26 1/4 days
Solve for x: A + B = 21 days therefore 3x + x = 21 days
4x = 21 days
x = 21/4 days
x = 5 1/4 days
If B is not there then A has to do their work and B's work therefore it will take A 21 days + 5 1/4 days = 26 1/4 days
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