Question

arpit can fence a garden in 3 hrs, Ankur can do it in 5 hrs, Akash takes 6 hrs the same if they work together, in how many hrs can they fence the garden.

plz Urgent​

Answer 1

Step-by-step explanation:

Arpit 3 hrs == 1 garden

In 1 hr ==== 1/3 part

Ankur in 5 hrs == 1 garden

In 1 hour == 1/5 part

Akash in 6 hrs == 1 garden

In 1 hour == 1/6 part

In 1 hour, together they do:

1/3 + 1/5 + 1/6 = 1*10/3*10 + 1*6/5*6 + 1*5/6*5

                       =  10+6+5/30 = 21/30 part

1 hour == 21/30 part

X hours = 1 garden

X = 30/21 = 10/7 hours