Question

A can fill the tank completly in 15 min and B can empty the full tank in 20 min. if both the taps are openend alternatively for 1 min ,A started then how much time the empty tank will be filled completely.
a.1hrs 53min
b.2hrs 40 min
c.1 hrs 48 mkn
d. 1hrs 51 min​

Answer 1

Step-by-step explanation:

tank will be filled in 1hr 53 minutes