GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
38. | A completes 80% of a work in 20 days. Then B also joins and A and B together finish the remaining work in 3 days. How long does it need for B if he alone completes the work? | |
A. | 37 � days | |
B. | 22 days | |
C. | 31 days | |
D. | 22 days | |