Mansoor-Ul-Haque and Aaqib are working on a special assignment. Mansoor-Ul-Haque

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Mansoor-Ul-Haque and Aaqib are working on a special assignment. Mansoor-Ul-Haque needs 6 hours to type 32 pages on a computer and Aaqib needs 5 hours to type 40 pages. If both of them work together on two different computers, how much time is needed to type an assignment of 110 pages?

Options:

A . 7 hour 15 minutes

B . 7 hour 30 minutes

C . 8 hour 15 minutes

D . 8 hour 30 minutes

Answer: Option C
PAGES TYPED BY MANSOOR-UL-HAQUE IN 1 HOUR = 32/6 = 16/3
PAGES TYPED BY AAQIB IN 1 HOUR = 40/5 = 8
PAGES TYPED BY MANSOOR-UL-HAQUE AND AAQIB IN 1 HOUR = 16/3 + 8 = 40/3
TIME TAKEN TO TYPE 110 PAGES WHEN MANSOOR-UL-HAQUE AND AAQIB WORK TOGETHER = 110 × 3 /40 = 33/4
= 8 ¼ HOURS = 8 HOUR 15 MINUTES

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