CAT 2020 Slot 3 QA Q4 Time & Work

Question 4 of the Quantitative Ability (QA) section, CAT 2020 Slot 3, with CAT's official answer.

A contractor agreed to construct a 6 km road in 200 days. He employed 140 persons for the work. After 60 days, he realized that only 1.5 km road has been completed. How many additional people would he need to employ in order to finish the work exactly on time?

TITA: type in the answer. There are no options and no negative marking.

Answer: 40 Time & Work TITA

A worked solution for this question is being written. Meanwhile, practise it in a timed mock and see how other aspirants did.