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     EduGorilla 
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    A piece of work was done by P, Q and R. At first, P worked alone. But after some time, he was joined by Q. These two, after some hours, were joined by R. The whole work could have been done by Q and R, if they had each worked twice the number of hours that they actually did. The work could also have been completed without Q`s help, if P had worked two-thirds and R four times the number of hours they actually did, or if P and Q had worked together for 40 hours without R, or if all three had worked together for the time that Q worked. The number of hours that elapsed before Q began to work to the number of hours that elapsed before R began to work was in the ratio 3 to 5. What is the number of hours worked by P, Q and R, respectively?

    Options :-

    1. 45, 20 and 24
    2. 24, 15 and 10
    3. 35, 20 and 24
    4. 45, 24 and 10
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