Samarth can complete a work in 6 h. Soumik can complete same work in 8 h. How long should it take for both Samarth and Soumik working together but independently, to do the same work?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3. i.e.
LCM of 6 & 8 = 24 units (total work)
Samarth efficiency = 24 ÷ 6 = 4 units/hr
Soumik efficiency = 24 ÷ 8 = 3 units/hr
Together = 4 + 3 = 7 units/hr
Time = 24 ÷ 7 =