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
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1
Answer:
24
Step-by-step explanation:
1/30+1/40+1/x=1/10
1/x=1/24
X=24//
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