An automobile tire has two punctures. The first puncture by itself would make the tire
flat in 9 minutes. The second puncture by itself would make the tire flat in 6 minutes.
How long will it take for both punctures together to make the tire flat?
Answers
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3
Answer:
3 min 36 sec
Step-by-step explanation:
=1/9+1/6
=(2+3)÷18
=5÷18
=1/(18÷5)
18/5=3 3/5 minutes=3 minutes 36 seconds
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