A person X is twice as good a workman as a person Y. By joining together, they complete a job in 18 days. Find the number of days the person X as well as Y can complete the job, respectively, if each of them works separately.
A. (27,54)
B. (18, 36)
C. (21,42)
D. (23, 46)
Answer:A
A person X is twice as good a workman as a person Y. By joining together, they complete a job in 18 days. Find the number of days the person X as well as Y can complete the job, respectively, if each of them works separately.
A. (27,54) B. (18, 36) C. (21,42) D. (23, 46)