CAT (Certified Accounting Technician) Question: Download CAT (Certified Accounting Technician) PDF

Ram, who is half as efficient as Krish, will take 24 days to complete a work if he worked alone. If Ram and Krish worked together, how long will they take to complete the work?

1. 16 days
2. 12 days
3. 8 days
4. 18 days

Ans : C

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Ram starts working on a job and works on it for 12 days and completes 40% of the work. To help him complete the work, he employs Ravi and together they work for another 12 days and the work gets completed. How much more efficient is Ram than Ravi?	Lcm of two numbers is 138. but their gcd is 23. the numbers are in a ratio 1:6. which is the largest number amongst the two? a. 46 b 138 c 69 d 23?