Subject: General Aptitude · Chapter: Time and Work · Exam: 2002 · Marks: · Difficulty:
Ronald and Elan are working on an assignment. Ronald takes 6 hours to type 32 pages on a computer, while Elan takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages ?
(a)7 hours 30 minutes
(b)8 hours
(c)8 hours 15 minutes
(d)8 hours 25 minutes
Answer
Answer (as printed): C
Explanation
Number of pages typed by Ronald in 1 hour = = . 6 3 40 Number of pages typed by Elan in 1 hour = = 8. 5 16 40 Number of pages typed by both in 1 hour = + 8 = . 3 3 ∴ Time taken by both to type 110 pages 3 1 = 110 × hrs = 8 hrs = 8 hrs 15 min. 40 4
Explanation as extracted from the printed page; notation may be imperfect.