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Data Sufficiency Questions

August 13th, 2011 Posted in Uncategorized

Directions for next 4 questions: In each question there are two statements: A and B.

Choose [a] if the question can be answered by one of the statements alone but not by the other.
Choose [b] if the question can be answered by using either statement alone.
Choose [c] if the question can be answered by using both the statements together but cannot be answered using either statement alone.
Choose [d] if the question cannot be answered even by using both the statements A and B.
Choose [e] if the question can be answered by using either statement alone but not using both.

1. F and M are father and mother of S, respectively. S has four uncles and three aunts. F has two siblings. The siblings of F and M are unmarried. How many brothers does M have?
A. F has two brothers.
B. M has five siblings.

2. A game consists of tossing a coin successively. There is an entry fee of Rs. 10 and an additional fee of Re. 1 for each toss of the coin. The game is considered to have ended normally when the coin turns heads on two consecutive throws. In this case the player is paid Rs. 100. Alternatively, The Princeton Review CAT sample paper 24 the player can choose to terminate the game prematurely after any of the tosses. Ram has incurred a loss of Rs 50 by playing this game. How many times did he toss the coin?
A. The game ended normally.
B. The total number of tails obtained in the game was 138.

3. Each packet of SOAP costs Rs 10. Inside each packet is a gift coupon labeled with one of the letters S, O, A, and P. If a customer submits four such coupons that make up the word SOAP, the customer gets a free SOAP packet. Ms. X kept buying packet after packet of SOAP till she could get one set of coupons that formed the word SOAP. How many coupons with label P did she get in the above process?
A. The last label obtained by her was S and the total amount spent was Rs 210.
B. The total number of vowels obtained was 18.

4. If A and B run a race, then A wins by 60 seconds. If B and C run the same race, then B wins by 30 seconds. Assuming that C maintains a uniform speed what is the time taken by C to finish the race?
A. A and C run the same race and A wins by 375 meters.
B. The length of the race is 1 km

8 Responses to “Data Sufficiency Questions”

  1. sheetal bhasin Says:

    1) D
    2) A
    3) D
    4) D

  2. Arun Says:

    the solution to the above problem set
    1. a
    2. a

  3. radha Says:

    1. a
    3. c
    4. c

  4. Arun Says:

    the solution to the above problem set
    1. a
    2. a

    the first question exp
    F M
    – – F M – – – – -SINCE S IS THE CHILD OF F &M
    F HAS TWO MEANS M HAS 5 NAMELY 2 UNCLES AND 3 AUNTS IF F HAS TWO UNCLES HENCE answer is (a) ie only one statemnt is used

    2 .
    since it uses rs.10 for entry and the x for each toss then
    loss equal 50 ie
    if we chose 40 and player quits he will lose 50
    which means we donot require any of two statments which is not the option
    hence if chose a then the prize is 100 to lose 50 means 10+140 tosses = 150 and 150-100(end normally) = 50
    hence ans – a

    we have to use both statment
    since the last label is s then she had 20(O,A,P) using total of 210.
    then with second statemnt
    18 vowels means A,0
    hence no of P equals is 2

    we have to use both
    let d be distnace and x,y,z be the speed for A,B,C

    d/y-d/x = 60
    d/z-d/y = 30
    d/z – d/x = 90
    statemnt 1
    let time taken by A is t
    xt-zt = 375
    (x-z)d/x = 375
    from above
    z = 375/90 = 25/6
    stament 2
    then d= 1km
    time taken is 1000*6/25 = 240sec

  5. admin Says:

    1. a.
    From statement A.
    2. b.
    From both statements individually. If x is the number of tosses he took, from statement I we get the equation 10 + x –100 = 50. Thus x = 140. From statement II individually, we have x > 138. Thus we are sure he has paid up more than 148. If he incurs a loss of only Rs. 50, the game has to end normally. Thus the above state of his taking 150 shots with first 138 as tails and 139 and 140 throw as tails is the scenario. With no other scenario will a loss of just 50 and 138 tails show up.
    3. c.
    Using both statements.
    4. c
    Using both statements.

  6. chitra garg Says:

    2: a
    3: c
    4: c

  7. Mat Syllabus 2010 Says:

    […]  Questions Reading Comprehension 40 Data Interpretation/Data sufficiency 40 Quantitative Aptitude   40 Logical and Critical reasoning 40 General Awareness**  40 **Scores […]

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