Math, asked by uzairalam2016p8e36d, 1 year ago

A and B together can do a piece of work in 15 days A alone can finish the work in 20 days in how many days can B alone finish the work

Answers

Answered by IntelligentAshwin
2
20-15=5
In 5 days b do his work

ale63: 100 days
uzairalam2016p8e36d: sorry bhai rong answer their is a option
Answered by john166
3
A+B=15
1/A+1/B=1/15
1/A=1/20
1/B=1/15-1/20
=3/60
=1/20
B =20 days

john166: sahi answer hai?
john166: what is right answer
uzairalam2016p8e36d: their is a options
john166: answer is 60 days
john166: there is a calculation mistake
uzairalam2016p8e36d: A=50 days B =60days C=70days D=80 days
john166: B 60 days is the answer
uzairalam2016p8e36d: that is option
john166: method is correct
uzairalam2016p8e36d: ok bhai thanks
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