Votes polled (in lakh) for four IT companies A–D in six alternate months. Each person voted for exactly one company.
| Month | A | B | C | D |
|---|---|---|---|---|
| January | 1.5 | 2.5 | 3.0 | 4.0 |
| March | 1.0 | 3.0 | 2.0 | 4.0 |
| May | 1.0 | 1.0 | 2.5 | 3.5 |
| July | 1.5 | 1.0 | 2.5 | 4.5 |
| September | 2.0 | 2.0 | 3.5 | 4.5 |
| November | 3.0 | 2.0 | 1.5 | 4.0 |
What is the ratio of the percentage decline in the votes of B in May compared to January, to the percentage decline in the votes of C in November compared to January?
A6 : 7
B7 : 6
C6 : 5 ✓ Correct
D4 : 3
Correct answer: (C) 6 : 5
Explanation
The ratio of the two percentage declines is 6 to 5, so that is the answer.
Company B fell from 2.5 in January to 1.0 in May, a drop of 1.5.
That is a 60 percent decline for B.
Company C fell from 3.0 in January to 1.5 in November, a drop of 1.5.
That is a 50 percent decline for C.
So the ratio 60 to 50 simplifies to 6 to 5.
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