Nobita can do a piece of work in 40 minutes, while Gian can do it in 30 minutes. How much will they take to complete the work, if they work together?
Answer as soon as possible
Answers
Answer:
17.14 minutes
Step-by-step explanation:
Work done by nobita in 1 min= 1/40
Work done by Gian in 1 min= 1/30
Work done by both in 1 min = 1/30 + 1/40
= (3+4)/120
=7/120
Time taken by them to do the work together=120/7 minutes =17.14 minutes
Answer:
They will take 17 (1 / 7 )min.to complete the work if they work together.
Step-by-step explanation:
Given:
Time taken by Nobita to do a piece of work= 40 min.
Let the part of work done = 1
Part of work Nobita can do in 1 min.= 1 / 40
Time taken by Gian to the same piece of work = 30 min.
Part of work Gian can do in 1 min. = 1 /30
Part of work done by Nobita and Gian together in 1 min. = (1 / 40) + (1 / 30)
(L.C.M of 40 and 30 =120)
= (3 + 4 ) / 120
= 7 /120
Time Taken by Nobita and Gian to complete the work if they work together=1 ÷ (7 / 120 )
=120 / 7 min.= 17 (1/7) min.