DSSSB · Mathematics
Deepak and Tappu can do a piece of work in 45 hours and 40 hours, respectively. They began the work together, but Deepak left after some hours and Tappu finished the remaining work in 23 hours. After how many hours did Deepak leave?
- 9 hours
- 6 hours
- 15 hours
- 12 hours
Deepak and Tappu can do a piece of work in 45 hours and 40 hours, respectively. They began the work together, but Deepak left after some hours and Tappu finished the remaining work in 23 hours. After how many hours did Deepak leave?
- 9 hours
- 6 hours
- 15 hours
- 12 hours
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