जॉइन Examsbookउत्तर : 3. "6 days"
A and B can do a work in 4 hours and 12 hours respectively. A starts the work at 6 AM and they work alternately for one hour each. When will the work be completed?5
प्र: A and B can do a work in 4 hours and 12 hours respectively. A starts the work at 6 AM and they work alternately for one hour each. When will the work be completed?
- 14 daysfalse
- 25 daysfalse
- 36 daystrue
- 47 daysfalse
- उत्तर देखें
- Workspace
उत्तर : 3. "6 days"
व्याख्या :
Answer: C) 6 days Explanation: Work donee by A and B in the first two hours, working alternatively = First hour A + Second hour B = (1/4) + (1/12) = 1/3. Thus, the total time required to complete the work = 2 (3) = 6 days
समान प्रश्न
Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.