Multiple Choice Questions on A can type 100 letters in 5 minutes B and C typing together can type 50 letters in 2 minutes If all ........... for PCS Exam Preparation

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Multiple Choice Questions

A can type 100 letters in 5 minutes B and C typing together can type 50 letters in 2 minutes If all ...........

Quantitative Aptitude (PCS) Time and work
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    A can type 100 letters in 5 minutes. B and C typing together can type 50 letters in 2 minutes. If all of them working together then can type 90 letters in how many minutes?

    2 minutes

    Correct Answer

    4 minutes

    Incorrect Answer

    5 minutes

    Incorrect Answer

    10 minutes

    Incorrect Answer
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    Explanation:

    Explanation :
    (1/5+1/4)
    20/9*90/100 = 2

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