Subject: General Aptitude · Chapter: Time and Work · Exam: 2010 · Marks: · Difficulty:
8 men can complete a piece of work in 20 days. 8 women can complete the same work in 32 days. In how many days will 5 men and 8 women together complete the same work?
(a)10 days
(b)12 days
(c)14 days
(d)16 days
(e)None of these
Answer
Answer (as printed): D
Explanation
1 man’s 1 day’s work = = ; 20 × 8 160 1 1 1 woman’s 1 day’s work = = . 32 × 8 256 (5 men + 8 women)’s 1 day’s work 5 8 1 1 1 = + = + = . 160 256 32 32 16 Hence, 5 men and 8 women together can complete the work in 16 days. 553 1 1
Explanation as extracted from the printed page; notation may be imperfect.