The following Question is followed by three statements. You have to study the Question and the statements and decide which of the statement(s) is/are necessary to answer the Questions. Choose the correct answer from the given options-
What is the population of the State ‘A’?
1. After an increase in the population of state A by 15%, it becomes 1.61 lakhs.
2. Ratio of population of state A to that of state B is 7:8.
3. Population of state B is 1.6 lakhs.

1 and 2

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2 and 3

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1 and 3

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Either 1 or 2 or 3

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Solution

The correct option is D Either 1 or 2 or 3
Eitherstatement 1 or 2 or 3 are necessary to Ans the question.
A $(\frac{115}{100}) = 1.61$
A=1.61 $(\frac{100}{115})$ lakhs
$2 + A = \frac{1.6}{8} \times 7$

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The correct option is D Either 1 or 2 or 3Eitherstatement 1 or 2 or 3 are necessary to Ans the question. A (115100)=1.61 A=1.61 (100115) lakhs 2+A=1.68×7

The correct option is D Either 1 or 2 or 3
Eitherstatement 1 or 2 or 3 are necessary to Ans the question.
A $(\frac{115}{100}) = 1.61$
A=1.61 $(\frac{100}{115})$ lakhs
$2 + A = \frac{1.6}{8} \times 7$