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| Q.13 | A man and a child can do a work in 90 days, a woman and a child can do the same work in 60 days and a man and a woman can do the same work in 45 days. How many days will be required to complete the work if all the three work together? | |
| Ans | A. 40 days | |
| B. 20 days | ||
| C. 25 days | ||
| D. 30 days |
Correct Ans Provided: A
