LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
16 views
in Aptitude by (30.0k points)
closed by
Chin and Chan together can complete a piece of work in 40 days while Chin alone can complete the same work in 60 days. Chan alone will be able to complete the same work in
1. 90 days
2. 120 days
3. 60 days
4. 75 days

1 Answer

0 votes
by (54.3k points)
selected by
 
Best answer
Correct Answer - Option 2 : 120 days

Given

Chin and Chan together can complete a piece of work in 40 days while Chin alone can complete the same work in 60 days

Concept used

Work  efficiency 

Calculation

Chin and Chan do work together = 40 days 

⇒ 1 day work of Chin and Chan  = 1/40 

⇒ Chin can do same work = 60 days

⇒ 1 day work of Chin = 1/60

According to question

⇒ 1 day work of Chan = 1/40 - 1/60

⇒ (3 - 2)/120 = 1/ 120

∴ Chan can do the same work along in 120 days

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...