Two pipes A and B can fill a petrol tanker in 15 and 12 hours respectively. A third pipe C can empty the whole tanker in 6 hours
1 answer:
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Answer: The answer is (B)
Explanation: The answer is (B) because, there are 2 zeros so that means that there would have to be a 2 behind the 10 and then there is 2,3,4,and 9. We take out the 9 and use the other numbers, bring over the decimal and now you have .