Can anyone help me to answer this question
A can do a piece of work in 7 days of 9 hours each and B can do it in 6 days of 7 hours each. How long will they take to do it working together 8 2/5 hours a day
Thanks Pramod
Can anyone help me to answer this question
A can do a piece of work in 7 days of 9 hours each and B can do it in 6 days of 7 hours each. How long will they take to do it working together 8 2/5 hours a day
Thanks Pramod
Just start translating words to numbers.
For $A$ : $7$ days $\times 9=63$ hours to complete the work. For $B$ : $6$ days $\times 7=42$ hours to complete the work. So, in $1$ hour, $A$ makes $\frac{1}{63}$ of the work and $B$ makes $\frac{1}{42}$ of the work.
So, now, what is the work done by $A$ and $B$ together in $1$ hour and then how many hours are required for completing the work ? And now, you know that one day they work together corresponds to $8 \frac 25$ hours. So, how many days ?
I am sure that you can take from here.