A can finish a piece of work in 12 hour while B can finish it in 15 hour. how long will both take to finish it working together
Answers
Answered by
8
Answer:
A can finish a piece of work in = 12 hour
work done by A in 1 hour = 1/12 work
B can finish it in = 15 hour
work done by B in 1 hour = 1/15 work
total work done by A and B
= 1/12 + 1/15
= 5+4/60
= 9/60
= 3/20
time taken to finish
= 20/3
2
=6------ hours
3
Answered by
0
Step-by-step explanation:
A can finish a piece of work in = 12 hour
work done by A in 1 hour = 1/12 work
B can finish it in = 15 hour
work done by B in 1 hour = 1/15 work
total work done by A and B
= 1/12 + 1/15
= 5+4/60
= 9/60
= 3/20
time taken to finish
= 20/3
2
=6------ hours
3
Similar questions