A and B together complete a work in 8 days. If B is 25% more efficient than A, then in how many days will A alone complete the same work?
A12 days
B18 days
C24 days
D6 days
Answer:
B. 18 days
Read Explanation:
A+B = 8 days
A/B=4/5
efficiency of A is 4 and efficiency of B is 5
so the efficiency of A&B is 4+5=9
total work is =9 x 8=72
A alone complete the same work = 72/4=18 days