David can pack 132 cartons of jar in one day and his assistant Mark works one quarter as fast as david does. How many days would it take both of them
working together to pack 660 cartons?
Most of people are answering 4 read the question again marks is working 1/4 times faster than david not 1/4 of david
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I think so the answer of your question is 5
goindanisalish:
Can you explain?
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