Multiple choice

Each question below is followed by two statements A and B. You have to determine whether the data given in the statement is sufficient to answer the question. You should use the data and your knowledge of mathematics to choose between the possible answers. Give answer: (a)if the statement A alone is sufficient to answer the question, but the statement B alone is not sufficient. (b)if the statement B alone is sufficient to answer the question, but the statement A alone is not sufficient. (c)if the both statement A and B together are needed to answer the question. (d)if either the statement A alone or B alone is sufficient to answer the question. (e)if you cannot get the answer from the statements A and B together, but needed even more data. What is the ratio of two number N1 and N2? A. 30% of N1 is 40% of 90. B. 20% of N2 is 36% of 50.

  1. (a)

  2. (b)

  3. (c)

  4. (d)

  5. (e)

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement A: 0.3*N1 = 0.4*90 = 36, so N1 = 120. Statement B: 0.2*N2 = 0.36*50 = 18, so N2 = 90. Together, we can find the ratio N1/N2.

AI explanation

From statement A, 0.30 times N1 equals 0.40 times 90, which gives N1 as 120. From statement B, 0.20 times N2 equals 0.36 times 50, which gives N2 as 90. Finding each number individually gives us the exact values needed for the ratio of 120 to 90, which is 4:3. Both statements are needed to answer the question.