Quantitative Aptitude 40- (Data Sufficiency)

(a) If the data in statement II alone is sufficient to answer the question, while the data in statement I along is not sufficient to answer the question.

(b) If the data in statement I alone is sufficient to answer the question, while the data in statement II is not sufficient to answer the question.

(c) If the data in both statements I and II are required to answer the question.

(d) If the data in both statements I and II together are not sufficient to answer the question.

Questions:

1. There were 90 students to be interviewed for selection to a computer course. To finish the interview in one day three panels X, Y and Z were formed. How many students are interviewed bu panel X?

I. The three panels on an average interview 30 students.

II. The number of students interviewed by panel X is more by 4 than the student interviewed by panel Z the number of students interviewed by panel Y is more by 2 than the students interviewed by panel Z.

2. A, B, C and D are four numbers. what is the standard deviation of four numbers?

I. The sum of squares of A, B, C and D is 360.

II. The um of A, B, C and D is 36.

3. Mukesh want to go to the roof top of a building  using a ladder. The roof level is 120 m above ground level. How many steps are there in the ladder that extends from ground level  to roof level?

I. Each step is 8 inches high.

II. Each step is 2.5 inches wide.

4. What is the length of the side of a rectangular formed by the rope?

I. The total length of a rope is a multiple of 4.

II. The area of triangle formed by the same rope is twice area of the circle formed by the rope.

5. Akbar spends 20% of his pocket money on purchase of toffees, 10% on ice-cream and 5% on cold drinks. He saves the balance pocket money in a bank. The bank pays him interest @ 8% per annum. Rahim spends 30% of his pocket money on purchase of toffees, 12% on ice-cream and 6% on cold drinks. Rahim saves the balance pocket money for purchase of story books. who spends more on purchase of toffees?

I. Akbar spends more on ice-cream than Rahim.

II. Rahim spends more on cold drinks than Akbar.

Answers:

  1. (a)
  2. (c)
  3. (b)
  4. (d)
  5. (d)