The table below indicates the result of an experiment during which grains of different colours in two maize cobs were counted
| Maize cob | White | Pink | Red |
| I | 30 | 60 | 30 |
| II | 50 | 99 | 49 |
Which of the following ratios agrees with the result?
- 9:3:3
-
1:2:1
- 1:3:1
- 2:1:1
- 2:3:2
The correct answer is: B
Explanation
First, sum up the total number of each colour in both maize cobs I and II.
i.e White (30 + 50) = 80
Pink (60 + 99) = 159
Red ( 30 + 49) = 79
Ratio 80 : 159 : 79 is approximately 1: 2: 1. Option B is the correct answer.