"49 pumps can empty a  reservoir in `6 1/2 days` ' working 8 hours a day. If 196 pumps
Channel: Doubtnut
Date: 2020-04-12

"49 pumps can empty a
  reservoir in `6 1/2 days` ' working 8 hours a day. If 196 pumps are used for 5
  hours each day, then the same work will be completed in 
`2\ d a y s`
b. `2 1/2d a y s`
c. `2 3/5`
d. `3\ d a y s`"