12 men can do a piece of work in 24 days. How many days are needed to complete the work, if 8 men do this… · ABC26GN3542
Subject: General Aptitude · Chapter: Time and Work · Exam: Indian Railway Gr. ‘D’ Exam 2014
12 men can do a piece of work in 24 days. How many days are needed to complete the work, if 8 men do this work?
(a)28
(b)36
(c)48
(d)52
Answer
Answer (as printed): B
Explanation
12 men can do a piece of work in 24 days ⇒ M1 = 12 and D1 = 24 8 men can do this work in D2 days ⇒ M2 = 8 M1 D1 = M2 D2 ⇒ 12 × 24 = 8 × D2 12 × 24 ⇒ D2 = = 36 days 8
Explanation as extracted from the printed page; notation may be imperfect.