Multiple Choice Questions on Subhash can copy 70 pages in 16 hours Subhash and Prakash together can copy 275 pages in 40 hou........... for Punjab Naib Tehsildar Exam Preparation

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Multiple Choice Questions

Subhash can copy 70 pages in 16 hours Subhash and Prakash together can copy 275 pages in 40 hou...........

Mental Ability (N tehsildar) Time and work
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    Subhash can copy 70 pages in 16 hours ; Subhash and Prakash together can copy 275  pages in 40 hours. In how much time can Prakash copy 30 pages ?

     

    15 hr

    Incorrect Answer

    12 hr

    Correct Answer

    14 hr

    Incorrect Answer

    18 hr

    Incorrect Answer
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    Explanation:

    Solution: 
    Subhash can copy 70 pages in 16 hours so In 40 hours he can copy 70*2.5 = 175 pages. Hence prakash can copy 100 pages in 40 hours . Thus , he can copy 30 pages in 30% of the time i.e 12 hours.

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