A and B together can complete a piece of work in 6 days. If A alone can complete the same work in 15 days, then in how many days can B alone complete the work?
_1.) 8 days
_2.) 9 days
_3.) 10 days
_4.) 12 days
Answers
Answered by
1
Answer:
8 days
Step-by-step explanation:
Answered by
1
Answer:
In 1 day A can do 1/6 work
In 15 days he will do 15×(1/6)=5/2 work
B finishes 1/6 work in 1 day
B can finish 5/2 work in (6/1)×(5/2)=15 days
A common sense: both together complete the job in same number of days =6
So alone A and B will complete the job in same number of days. Since A takes 15 days, so B also will take 15 days. Ans 15 days
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