Question

Three taps a, b and c together can fill an empty cistern in 10 min. The tap a alone can fill it in 30 min and the tap b alone can fill it in 40 min. How long will the tap c alone take to fill it? Select one: a. 24 min b. 16 min c. 32 min d. 40 min

Answer 1

Answer:

24

Step-by-step explanation:

1/30+1/40+1/x=1/10

1/x=1/24

X=24//