LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
27 views
in Aptitude by (59.9k points)
closed by
4 women and 3 men can complete a task in 12 days where a woman is thrice as efficient as a man. Find the time taken by 15 men to complete the same task.
1. 12 days
2. 24 days
3. 12.5 days
4. 15 days

1 Answer

0 votes
by (103k points)
selected by
 
Best answer
Correct Answer - Option 1 : 12 days

Given:

4 women and 3 men can complete a task in 12 days

A woman is thrice efficient as a man → W / M = 3 / 1

Formula used:

M1 × Eff1 × D1 = M2 × Eff2 × D2, where M = number of workers, D = number of days and Eff. = efficiency of worker

Calculation:

Let ‘D’ be the time taken by 15 men to complete the same task.

(4 × 3 + 3 × 1) × 12 = (15 × 1) × D

⇒ D = 180/15 = 12 days = time taken by 15 men to complete the same task.

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

...