Question

25. 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​

Answer 1

Given: in a group of 120 persons 80 are Indians and

rest are foreigners  

70 persons in the group can speak English.

To Find : the number of Indians who can speak English​

(a) 20 (b) 30 (c) 30 or less (d) 30 or more​

Solution:

Total Persons = 120

Indian = 80

Foreigners = 40

70 persons in the group can speak English.

if All  40 foreigners can speak English  

Then

number of Indians who can speak English​  = 70 - 40  = 30

if No foreigners can speak English  

Number of Indians who can speak English​ = 70 - 0 = 70

Hence number of Indians who can speak English​  are between 30 and 70.

Hence 30 or more​ is the correct options.

option d is correct

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