Question

Solve this problem guys​

Answer 1

Answer:

15 days

Step-by-step explanation:

a+b+c=4 days
work in 1 day = 1/4
days taken by a = 12
days taken by b = 10
work in one day by a and b = 1/12+1/10
work in one day by c= 1/12+1/10+c = 1/4
                                  = c = 1/4-11/60
                                  = c = 4/60

days take by c = 60/4 = 15

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