Question

a b c can make a carpet in 6 12 and 18 days respectively in how many days will they make a carpet if they start working together​

Answer 1

Answer:

3.27 days

Step-by-step explanation:

a-6 days

b- 12 days

c- 18 days

total work= lcm(a,b,c) = 36

efficiency of a 36/6 = 6

efficiency of  b 36/12= 3

efficiency of c 36/18=2

when the work together 36/(6+3+2)= 36/11= 3.27 days or 3 30/11d days

Answer 2

Answer: Time Taken by A to complete the work- 6 days

So, In 1 day A can complete the work-1/4 day

Time Taken by B to complete the work-12 days

So, In 1 day B can complete the work-1/12 day

Time Taken by C to complete the work-18 days

so, in 1 day C can complete the work-1/18 days.

According to the question,

1/16+1/12+1/18

=6/36+3/36+2/36

= 11/36

= 36/11

= 3 whole 3/11 days

I think it will help you.....