| 1. |
Which of the following is true? |
| A. |
At least two houses have black chimney. |
| B. |
At least two houses have red roofs. |
| C. |
At least two houses have white chimneys |
| D. |
At least two houses have green roofs |
| E. |
At least two houses have yellow roofs |
| 2. |
Which must be false? |
| A. |
House A has a yellow roof |
| B. |
House A & C have different colour chimney |
| C. |
House D has a black chimney |
| D. |
House E has a white chimney |
| E. |
House B&D have the same colour roof. |
| 3. |
If house C has a yellow roof. Which must be true? |
| A. |
House E has a white chimney |
| B. |
House E has a black chimney |
| C. |
House E has a red chimney |
| D. |
House D has a red chimney |
| E. |
House C has a black chimney |
| 4. |
Which possible combinations of roof & chimney can house
- A red roof 7 a black chimney
- A yellow roof & a red chimney
- A yellow roof & a black chimney
|
| A. |
I only |
| B. |
II only |
| C. |
III only |
| D. |
I & II only |
| E. |
I & II & III |