Kamal will complete work in 20 days. If Suresh is 25% more efficient than Kamal, he can complete the work in________days.

A. 14
B. 16
C. 15
D. 11

Work done by Kamal in 1 day = 1/20
Work done by Suresh in 1 day = (1/20) × (125/100) = 5/80 = 1/16
=> Suresh can complete the work in 16 days