CSAT 2021

Q. In a group of 120 persons, 80 are Indians and rest are foreigners. Further, 70 persons in the group can speak English. The number of Indians who can speak English is

(a) 20
(b) 30
(c) 30 or less
(d) 30 or more
Correct Answer: (d) 30 or more

Question from UPSC Prelims 2021 CSAT Paper

Explanation : 

English-Speaking Indians in Group

There are 120 persons in total and 80 of them are Indians. That means there are 40 foreigners in the group. We also know that 70 persons can speak English.

If all 40 foreigners can speak English, then at least 30 Indians (70 – 40) can also speak English. So the number of Indians who can speak English is 30 or more.

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