Question

In the question, two Quantities I and II are given. You have to solve both the Quantity to establish the correct relation between Quantity-I and Quantity-II and choose the correct option. Deepak is twice as efficient as Karan whose efficiency is one-third of the efficiency of Arjun. If all of them work together, then the work gets complete in 30 days. Quantity-I: What is the time taken by Deepak and Arjun to complete the work if both of them work on alternate days starting with Deepak? Quantity-II: What is the time taken by Karan and Arjun to complete the work together?

Q: Answer-In the question, two Quantities I and II are given. You have to solve both the Quantity to establish...

Let the efficiency of Arjun be 3e unitsday. Efficiency of Karan 13 X 3e e unitday Efficiency of Deepak 2 X 1e 2e unitsday Total work 2e 1e 3e X 30 180e units Quantity I Work done by Deepak and Arjun in first 2 days 2e 3e 5e units Time taken by them to complete the work 180e5e X 2 72 days So, Quantity I 72 days Quantity II Time taken by Karan and Arjun to complete the work 180e e 3e 45 days So, Quantity II 45 days Therefore, Quantity-I Quantity-II Hence, option a.