Soni and Geeta together can complete a job in 8 h and aarti alone can complete the job in 12 h. In how many hours can Geeta alone complete the job?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 24.
Given:
Soni and Geeta together can complete a job in 8 h
Aarti alone can complete the job in 12 h
Calculations:
Total amount of work (LCM of 8 and 12) = 24 units
Efficiency of Soni and geeta = 24/8 = 3 units/hour
Efficiency of soni = 1 unit/hour
Time taken by soni = 24/1 = 24 hours