Pari needs 4hours to complete a work.His friend yuvan needs to complete the same work.how long will it to complete if the work together?
Answers
Answer:
2 hours
Step-by-step explanation:
Pari finishes work in 4 hours
Assuming, Yuvan completes the same work in 4 hours.
Therefore, if they finish the work in = (1/4 + 1/4)⁻¹ = (1/2)⁻¹ = 2 hours
Answer:
In 2.4 hours both finish the work together.
Step-by-step explanation:
Time taken by Pari to finish the work = 4 hrs
One hour work of Pari = 1/4
Time taken by Yuvan to finish the work = 6 hrs
One hour work of Yuvan = 1/6
Work done by working together in an hour = 1/4 + 1/6
= 3/12 + 2/12
= 5/12
⇒ Time taken both working together to finish the work = 12/5 hour
= 2.4 hours
Therefore, In 2.4 hours both finish the work together.