Data Sufficiency Questions and Answers

Answer: C

Correct answer: Either 1 or 2 is sufficient

Statement 1 places M third from the top with five students between him and P, so P is ninth from the top and therefore twenty-second from the bottom in a class of thirty. Statement 2 places K fourth from the bottom, that is twenty-seventh from the top, with seventeen between him and P, giving P ninth from the top again. Each alone settles it.

Answer: A

In the two statements given in 1, the common words are 'But', 'None', 'And' and the

common code words are 'Ne', 'Pa', ,'Lo'. So, 'Ne', 'Pa' and 'Lo' are codes for 'But', 'None' and 'And'. Thus, in the first statement, 'Sic' is the code for 'No'.

Answer: D

Correct answer: Both 1 and 2 are sufficient

Statement 2 gives Sunday’s sales: every third of 1500 visitors bought a box, so 500 were sold. Statement 1 makes Monday ten per cent more, that is 550. Neither works alone - the first is a ratio without a base and the second gives only Sunday.

Answer: C

From 1, we conclude that Divya's mother is Shaloo's aunt or Divya is Shaloo's cousin.

Now, Divya's grandfather's only child is Divya's parent. So, from 2, we conclude that Shaloo and Divya are daughters of the same parents i.e. Divya is Shaloo's sister.

Answer: D

From 1, we know that the serials were screened on 23rd, 24th, 25th and 26th.

Clearly, D was screened second i.e. on 24th, Wednesday.

From 2, we know that one serial was screened between A and B.

So, A and B were screened first and third, i.e. on 23rd and 25th. But, A was not screened on 25th.

So, A was screened on 23rd and B on 25th. Thus, C was screened on 26th, Friday.

Answer: D

From 1, total sale of product A = Rs. (8000 x 25) = Rs. 200000.

From 2, we know that the company deals only in product A.

This implies that sale of product A is the total sale of the company, which is Rs. 200000.

Answer: C

Since 8th to the left of 12th from the right is 20th from the right, so from 1, we know that Vishakha is 5th from left and 20th from right i.e. there are 4 children to the left and 19 to the right of Vishakha. So, there are (4 + 1 + 19) i.e. 24 children in the row.

From 2, Nisha is 7th from right and 18th from left end of the row.

So, there are (6 + 1 + 17) = 24 children in the row.

Answer: B

Statement 1 is merely an interpretation of the information contained in the question.

However, Vinod's salary can be ascertained from 2 as follows : Let Vinod's and Javed's salaries be 4x and 3x respectively. Then, 3x = 4500 or x = 1500. Therefore Vinod's salary = 4x = Rs. 6000.

Answer: D

From 2, Q being in the middle, there are 10 children to his right as well as to his left. So, Q is 11th from the left. From 1, P is 15th from the left.

Thus, from both 1 and 2, we conclude that there are 3 children between P and Q.

Answer: D

Correct answer: Neither 1 nor 2 is sufficient

Statement 1 tells us Y has one brother and statement 2 that X has one sister, but neither says that X and Y are related to each other at all, nor gives the sex of either. Even together they leave the relationship undetermined, since X’s sister need not be Y and Y’s brother need not be X.