MCQOPTIONS
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| 1. |
Two faucet A and Bcan fill a cistern in 6 hours and 2 hours respectively. If they are opened on alternatehours and if faucet A is opened first, in how many hours will the cistern be full? |
| A. | 4 hrs |
| B. | 5 hrs |
| C. | 6 hrs |
| D. | 7 hrs |
| E. | |
| Answer» B. 5 hrs | |