Multiple Choice Questions on A B and C can do a work respectively in 10 12 and 15 days How many days will they together comp........... for CDS Exam Preparation

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Multiple Choice Questions

A B and C can do a work respectively in 10 12 and 15 days How many days will they together comp...........

Quantitative Aptitude (CDS) Time and work
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    A, B, and C can do a work respectively in 10 12 and 15 days. How many days will they together complete the work?

    17

    Incorrect Answer

    8

    Incorrect Answer

    4

    Correct Answer

    13

    Incorrect Answer
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    Explanation:

    (A+B+C) together will complete the work

          =10×12×15/10×12+12×15+15×10

          = 1800/120+180+150

           =4 days

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