In 4/5 time, Naman can do half work of Gagan. When both of them are working together, then complete the entire work in 16 days. Find out the time taken by Gagan to complete the whole work alone.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 26 days
Concept used:
Total work = Efficiency × time
Calculations:
Let the efficiency of naman and gagan ne N and G.
According to the question;
⇒ (N × 4)/1 = (G × 5)/2
⇒ N/G = 5/8
Total work = 16 × 13 units
Time taken by gagan = (16 × 13)/8 = 26 days