Data Sufficiency Questions
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Data Sufficiency Questions: Directions for next 3 Data Sufficiency Questions: Each Data Sufficiency Questions is followed by two statements, A and B. Answer each question using the following instructions:
Choose (1) if the question can be answered by one of the statements alone, but cannot be answered by using the other statement alone.
Choose (2) if the question can be answered by using either statement alone.
Choose (3) if the question can be answered by using both the statements together, but cannot be answered by using either statement alone.
Choose (4) if the question cannot be answered even by using both statements together.
1. A alone can complete the task in 10 days and B alone in 12 days. On which day does the task get completed?
A. A and B take turns, working on alternate days.
B. On the 3rd day it is A’s turn
a. 1
b. 2
c. 3
d. 4
2. Which is the smallest of the three positive integers a, b and c?
A. ab = 6
B. bc = 12, ac = 8
a. 1
b. 2
c. 3
d. 4
3. The income of (A) and (B) are in the ratio 5:3 and their expenses in the ratio 9:4. Find their incomes.
A. Each of them saves Rs. 700.
B. Each of them saves equal amounts.
a. 1
b. 2
c. 3
d. 4
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October 29th, 2009 at 12:13 am
1. 3
2. 3
3. 4
October 29th, 2009 at 12:21 am
1. 3
2. 3
3. 1
October 29th, 2009 at 12:30 am
1.3
2.3
3.1
October 29th, 2009 at 1:56 am
1-1
2-3
3-1
October 29th, 2009 at 3:39 am
1. 2
2. 3
3. 1
October 29th, 2009 at 4:35 am
a) 3
b) 3
c) 2
October 29th, 2009 at 4:59 am
Discuss the above questions @ COMMON ROOM
http://www.fireup.co.in/cat-mba-forum/
October 29th, 2009 at 5:01 am
a) 3
b) 3
c) 1
October 29th, 2009 at 7:36 am
the answer are
1- 1
2- 3
3 – 1
solution
1
since they both can do work in 1 day is 60/11
so two days is 120/11(first statement – they work alternate days)
now since 120/11 will be 10 days + one incomplete day the work is completed.
question asked on which it will be completed the answer is 11th day
solution 2
the solution only by using the both the statements described
hence
solution is a is greater
solution 3
let the salary and expenditure is x& y respectively
the income is x and 3x/5 and expenditure is y and 4y/9
hence x-y = 700 and 3x/5 – 4y/9 = 700(first statement alone)
x=2500 y= 1500
October 30th, 2009 at 1:02 am
@ ARUN
Dear they are not working together…
If work left on 11th day is less than 1/12 only then work will be completed on 11th day.. if work left if greater than 1/12 and less than 1/10 it will depend on whose started the work.
October 30th, 2009 at 2:07 am
answer for (1) is 3…cuz work done for first three days if A starts the work is 17/60 , if B starts the work first for 3 days thy wud have completed 16/60 .so its necessary use the second statement also.
ques(2)3rd choice
ques (3) is 2nd choice