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Data sufficiency MCQs with Answers

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Question 1

There is given below a question followed by two statements :
Question : x and y are two numbers, what is x/y ?
Statement 1 (S1) : Their average is 5/2 times y.
Statement 2 (S2) : Their difference is 3.
Which one of the following is correct in order that specific answer to the question is obtained ?

Select one answer

Question 2

There is given below a question followed by two statements :
Question : Is x greater than y ?
Statement 1 : x is greater than 30.
Statement 2 : y is greater than 27.
Which one of the following is correct in order that specific answer to the question is obtained ?

Select one answer

Question 3

A Cow has 4 legs & a Hen has 2 legs. If there are a total of 60 legs for a group of Cows & Hens, then the confirmed number of Cows & Hens in the group are :

Select one answer

Question 4

Given a question and two statements numbered I and II below, decide which statement(s) is/are sufficient to answer the question :
Question : What is the sum of 5 real numbers ?
Statements : (I) The product of the numbers is 630.
(II) The average of the numbers is 30.

Select one answer

Question 5

The question is followed by three statements is given below -
Decide whether the data provided in which statement/s is/are sufficient to answer the question and choose the correct option -
Question : Who is the tallest among M, P, Q and R?
Statements :
(I) P is taller than Q but not as tall as R.
(II) R is taller than M.
(III) M is taller than P.

Select one answer

Question 6

The question and two statements I and II are given below -
Which statement/s is/are sufficient for answering the question?
Question : 60 students choose at least one subject from History and Hindi. Find the number of students who choose History but not Hindi.
Statements :
(I) 18 students choose both History and Hindi.
(II) The number of students choosing History but not Hindi is the same as the number of students choosing Hindi but not History.

Select one answer

Question 7

A question and two statements are given below -
Question : Is x an odd number?
Statements :
(I) x^2 + x is an even number.
(II) x is a prime number greater than 2.
For answering the given question -

Select one answer

Question 8

Below a question and two statements are given:
Question: Three consecutive integers are written in increasing order. What is the second integer?
Statements:
(i) The sum of the first and third integer is 22.
(ii) The sum of the thrice of third integer, first integer and second integer is 57.
Give answer as:

Select one answer

Question 9

Read the problem below followed by two statements labelled as (i) and (ii), and decide whether the statements are sufficient to conclusively answer it.
Problem: The ratio of Amit's salary to Vikas's salary is 4:5. How much is Vikas's expenditure?
Statements:
(i) The ratio of Amit's and Vikas's expenditure is 3:4.
(ii) The ratio of their savings is 1:1.
Give answer as:

Select one answer

Question 10

Read both statements carefully and find which of the statement is/are sufficient to answer the given question -
I. A and D are heavier than B, E and F but none of them is the heaviest.
II. A is heavier than D but lighter than C. E is heavier than B and F.
Who is the heaviest among A, B, C, D, E and F?

Select one answer

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