RRB NTPC 28 March 2016 Shift 1

Instructions

Read the following information and answer the following questions.
In a class of 40 students, 28 can speak Tamil and 30 can speak Telugu.
All students can speak at least one of the two languages.

Question 44

Find the minimum number of students who can speak both Tamil and Telugu.

Solution

Let x students can speak both Tamil and Telugu.

So, only Tamil = 28 - x

Only Telugu = 30 - x

According to the question,

(28 - x) + (30 - x) + x = 40

58 -x = 40

x = 18

Hence, 18 students can speak both Tamil and Telugu.

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