A can finish a job in 15 days, while B can do it in 10 days. How long will they take to do the job together?
Answers
Answered by
5
Answer:
(A+B)'s 1 day's work =(
15
1
+
10
1
)=
6
1
Work done by A and B in 2 days =(
6
1
×2)=
3
1
Remaining work =(1−
3
1
)=
3
2
Now ,
15
1
work is done byA in 1 day,
∴
3
2
work done by A in (15×
3
2
)=10 days
Answered by
4
Answer:
6 days
Step-by-step explanation:
1/15 + 1/10
= lcm 30
= 2/30+3/30
= 5/30 = 1/6
= 6 days
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