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In a coloured picture of blue and yellow color, blue and yellow colour is used in the ratio of 4 : 3 respectively. If in upper half, blue : yellow is 2 : 3, then in the lower half blue : yellow is
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- 1 : 1
- 2 : 1
- 26 : 9
- 9 : 26
Correct Option: C
In coloured picture,
| Blue part = | |
| 7 |
| Yellow part = | |
| 7 |
In upper half,
| Blue part = | = | ||
| 5 × 2 | 5 |
| Yellow part = | = | ||
| 5 × 2 | 10 |
In lower half,
| Blue part = | − | = | |||
| 7 | 5 | 35 |
| = | |
| 35 |
| Yellow part = | − | = | |||
| 7 | 10 | 70 |
| = | |
| 70 |
| ∴ Required ratio = | : | ||
| 35 | 70 |
= 26 : 9
