A and B, working together, complete a task in 10 days. Had A worked at half of his efficiency and B at five times of his efficiency, it would have taken them 50% of the scheduled time to finish the job. In how many days can B complete the job working alone?
A. 12
B. 24
C. 15
D. 30
Answer:D
A and B, working together, complete a task in 10 days. Had A worked at half of his efficiency and B at five times of his efficiency, it would have taken them 50% of the scheduled time to finish the job. In how many days can B complete the job working alone?
A. 12 B. 24 C. 15 D. 30
Explanation: LCM and HCF