Three professors Dr. Ram, Dr. Radha and Dr. Kala are evaluating the answer copies of a subject. Dr. Ram is 40% more capable than Dr. Radha, who is 20% more capable than Dr. Kala. Dr. Ram takes 10 days less to complete the assessment work than Dr. Radha. Dr. Ram starts the assessment work and works for 10 days and after that Dr. Radha continues that work. Dr. Radha evaluates for the next 15 days and then stops, then that work is done by Dr. Kala.How many days will Dr. Kala take to complete the remaining assessment work?

Three professors Dr. Ram, Dr. Radha and Dr. Kala are evaluating the an

1.	Three professors Dr. Ram, Dr. Radha and Dr. Kala are evaluating the answer copies of a subject. Dr. Ram is 40% more capable than Dr. Radha, who is 20% more capable than Dr. Kala. Dr. Ram takes 10 days less to complete the assessment work than Dr. Radha. Dr. Ram starts the assessment work and works for 10 days and after that Dr. Radha continues that work. Dr. Radha evaluates for the next 15 days and then stops, then that work is done by Dr. Kala.How many days will Dr. Kala take to complete the remaining assessment work?
A.	7.2
B.	6
C.	6.2
D.	7
Answer» B. 6