CMAT 2016 Solved Question Paper

Question : 20 of 100

Marks: +1, -0

In a group, 50 people speak

L_1

, 20 speak

L_2

and10 speak both

L _1

and

L_2

. How many persons speakonly one of the two languages? (In the group, aperson speaks at least one of the two languages.)

Solution:

(d) Number of people speak

L_1

= 50
Number of people speak

L_2

= 20
Number of people speak both

L_1

and

L_2

= 10
∴ People speaking one language = 50 + 20 - 2(10)
= 70 - 20= 50

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