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1. |
Q: Ratan can complete a work in \(5 {1 \over 2}\) days while Rupesh can complete it in \(10 {1 \over 2}\) days. In how many days can they both complete it working on it together? |
A. | \(3 {39 \over 64 }\) |
B. | \(4 {39 \over 64 }\) |
C. | \(5 {39 \over 64 }\) |
D. | \(6 {39 \over 64 }\) |
Answer» B. \(4 {39 \over 64 }\) | |