The ratio of the number of students appearing for examination in the years 1998 in the states A B an...........

Quantitative Aptitude ( CCS) Ratio, Proportion

The ratio of the number of students appearing for examination in the years 1998 in the states A, B and C was 3 : 5 : 6. Next year if the number of students in these states increases by 20%, 10% and 20% respectively, the ratio in states A and C would be 1 : 2. What was the number of students who appeared for the examination in the state A in 1998 ?

7200

6400

Data inadequate

None of these

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Explanation:

Correct Option is 3: The data is inadequate.

Let the number of students appearing for examination in the year 1998 in the states A, B and C be 3N, 5N,and 6N respectively.
According to the question, {(3N x 120)/100} / {(6N x 110)/100} = 1/2
Its true for every N so, The data is inadequate.