| A result of a survey of 1000 persons with respect to their knowledge of Hindi [H], English [E] and Sanskrit [S] is given below. |
 |
A) \[\frac{5}{27}\]
B) \[\frac{10}{17}\]
C) \[\frac{1}{10}\]
D) \[\frac{1}{9}\]
Correct Answer: A
Solution :
| [a] The persons knowing all the three languages are represented by the region which is common to all the three circles. Hence, number of such persons = 100. |
| The persons who do not know Sanskrit are represented by the region outside circle S. So, number of such persons |
| \[=\left( 200+120+220 \right)=540\] |
| \[\therefore \] Required ratio \[=\frac{100}{540}=\frac{5}{27}\] |
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