Data Sufficiency Ex-2

Directions : For questions in this section mark

(a) If condition (i) alone is sufficient
(b) If condition (ii) alone is sufficient
(c) If both conditions together are sufficient
(d) If condition (i) alone & (ii) alone are sufficient
(e) information not sufficient

1. How many rolls of wall paper are necessary to cover the walls of a room whose floor and ceiling are rectangles 12 feet wide and 15 feet long
(i) A roll of paper covers 20 sq feet
(ii) There are no windows in the walls

Ans: (e)

2. Two pipes A and B emptied into a reservoir , pipe A can fill the reservoir in 30 minutes by itself. How long it will take for pipe A and pipe B together to fill up the reservoir.
(i) By itself, pipe B can fill up the reservoir in 20 minutes
(ii) Pipe B has a larger cross-sectional area than pipe A

Ans: (a)

3. Fifty students have signed up for atleast one of the courses GERMAN & ENGLISH, how many of the 50 students are taking GERMANI but not ENGLISH?
(i). 16 students are taking GERMANI & ENGLISH
(ii). The number of students taking ENGLISH but not GERMAN is the same as the number of students taking GERMAN

Ans: (c)

4. Find x+2y
(i). x+y=10
(ii). 2x+4y=20

Ans: (b)

5. Was Melissa Brown’s novel published?
(i). If Melissa Brown’s novel was published she would receive atleast $1000 in royalities during 1978
(ii). Melissa Brown’s income for 1978 was over $1000

Ans: (e)

6. A man 6 feet tall is standing near a light on the top of a pole What is the length of the shadow cast by the man.
(i) The pole is 18 feet high
(ii) The man is 12 feet from the pole

Ans: (c)

7. How much does John weigh? Jim weighs 200 pounds.
(i) Toms weight plus Moes weight equal to John’s weight.
(ii) John’s weight plus Moe’s weight equal to Twice Tom’s weight.

Ans: (c)

9. x and y are integers that are both less than 10. Is x>y?
(i). x is a multiple of 3
(ii). y is a multiple of 2

Ans: (e)

10. Is angle BAC is a right angle
(i) AB=2BC
(2) BC=1.5AC

Ans: (e)

11. Is x greater than y
(i) x=2k
(ii) k=2y

Ans: (e)

12. A piece of string 6 feet long is cut into three smaller pieces. How long is the longest of the three pieces?
(i). Two pieces are the same length.
(ii) One piece is 3 feet 2 inches lone

Ans: (b)

13. Does every bird fly?
(i) Tigers do not fly.
(ii) Ostriches do not fly

Ans: (b)

14. K is an integer. Is K is divisible by 12
(i) K is divisible by 4
(ii) K is divisible by 3

Ans: (c)

15. What is the distance from A to B
(i) A is 15 miles from C
(2) C is 25 miles from B

Ans: (e)

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