Question

    How many pages are there in the book? I.

    Lesson 8 and 9 take only 20 pages and at least five lessons take 13 pages each. II. There are 14 lessons in the book. Lesson no. 6 takes 14 pages while six other lessons take 12 pages each. Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer – 
    A If the data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question. Correct Answer Incorrect Answer
    B If the data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question. Correct Answer Incorrect Answer
    C If the data either in statement I alone or in statement II alone is sufficient to answer the question. Correct Answer Incorrect Answer
    D If the data in both statements I and II together are necessary to answer the question. Correct Answer Incorrect Answer
    E If the data in both statements I and II together not sufficient to answer the question. Correct Answer Incorrect Answer

    Solution

    From both I and II, 8 and 9 lessons take 20 pages. Lesson 6 takes 14 pages.  “Lesson 8 and 9 take only 20 pages and at least five lessons take 13 pages each.” ∴ 6 × 12 = 72 Total no. of lessons = 14 ∴ Remaining lessons = 14 – 9 = 5 Remaining pages = 5 × 13 = 65 ∴ Total no. of pages = 20 + 14 + 72 + 65 = 171. Hence both I and II are sufficient to answer the question.

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