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. Amit is thrice as efficient as Binny whose efficiency is one-fourth of the efficiency of Chetan. If all of them work together, then the work gets complete in 35 days. Quantity-I: What is the time taken by Amit and Chetan to complete the work if both of them work on alternate days starting with Amit? Quantity-II: What is the time taken by Amit and Binny 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 Chetan be 4e unitsday. Efficiency of Binny 14 X 4e e unitday Efficiency of Amit 3 X 1e 3e unitsday Total work 3e 1e 4e X 35 280e units Quantity I Work done by Amit and Chetan in first 2 days 3e 4e 7e units Time taken by them to complete the work 280e7e X 2 80 days So, Quantity I 80 days Quantity II Time taken by Amit and Binny to complete the work 280e 3e e 70 days So, Quantity II 70 days Therefore, Quantity-I Quantity-II Hence, option a.