Elearning , Interview Questions And Answers

5. House E has a green roof. 6. House B has a red roof and a black chimney 10. 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 Ans: (C) 11. 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 chmney (E) House B&D have the same color roof. Ans: (B) 12. If house C has a yellow roof. Which must be true. (A) House E has a white chimney (B) House E has a balck chimney (C) House E has a red chimney (D) House D has a red chimney (E) House C has a balck chimney Ans: (A) 13. Which possible combinations of roof & chimney can house I. A red roof 7 a black chimney II. A yellow roof & a red chimney III. A yellow roof & a black chimney (A) I only (B) II only (C) III only (D) I & II only (E) I&II&III Ans; (E) 14. What is the maximum total number of green roofs for houses Ans: (C)