In a group of 120 persons, 80 are Indians and rest are foreigners. Further, 70 persons in the group can…
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
20
30
30 or less
30 or more
Solution
Out of 120 persons, 80 are Indians and 40 are foreigners; 70 can speak English. The maximum possible number of English-speaking Indians is 70 (if all English speakers are Indian). The minimum is 30 (if all 40 foreigners speak English). So English-speaking Indians range from 30 to 70, i.e. 30 or more.