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1. |
4 girls and 6 boys can finish a work in 5 days while 3 girls and 4 boys can finish it in 7 days. Find the time taken by one girl alone and that by one boy alone to finish the work |
A. | 35, 70 |
B. | 140, 70 |
C. | 70, 35 |
D. | 70, 140 |
Answer» B. 140, 70 | |