.a and b together can do a piece of work in 9 days. if a does thrice the work of b in a given time, the time a alone will take to finish the work is
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(A + B)'s 1day work is 1/9
A + B = 1/9
A = 3 B
4 B =1 / 9
B = 1 / 36
Substituting B's value in the above equation:
A = 1/9 - 1/36 = 4-1 / 36 = 3/36 = 1/12
Thus A does 1/12th work in a day and will take 12 days to finish the work
A + B = 1/9
A = 3 B
4 B =1 / 9
B = 1 / 36
Substituting B's value in the above equation:
A = 1/9 - 1/36 = 4-1 / 36 = 3/36 = 1/12
Thus A does 1/12th work in a day and will take 12 days to finish the work
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Answer:
12 days
Step-by-step explanation:
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