Data Sufficiency - Previous Year CAT/MBA Questions

The best way to prepare for Data Sufficiency is by going through the previous year Data Sufficiency OMET questions. Here we bring you all previous year Data Sufficiency OMET questions along with detailed solutions.

It would be best if you clear your concepts before you practice previous year Data Sufficiency OMET questions.

1. XAT 2019 QADI | Data Sufficiency OMET Question

A bag contains marbles of three colours-red, blue and green. There are 8 blue marbles in the bag. There are two additional statement of facts available:

If we pull out marbles from the bag at random, to guarantee that we have at least 3 green marbles, we need to extract 17 marbles.
If we pull out marbles from the bag at random, to guarantee that we have at least 2 red marbles, we need to extract 19 marbles.

Which of the two statements above, alone or in combination shall be sufficient to answer the question "how many green marbles are there in the bag"?

(a)
Both statements taken together are suﬃcient to answer the question, but neither statement alone is suﬃcient.
(b)
Each statement alone is suﬃcient to answer the question.
(c)
Statements 1 and 2 together are not suﬃcient, and additional data is needed to answer the question.
(d)
Statement 2 alone is suﬃcient, but statement 1 alone is not suﬃcient to answer the question.
(e)
Statement 1 alone is suﬃcient, but statement 2 alone is not suﬃcient to answer the question.

2. XAT 2019 QADI | Data Sufficiency OMET Question

We have two unknown positive integers m and n, whose product is less than 100.
There are two additional statement of facts available:

mn is divisible by six consecutive integers { j, j + 1,...,j + 5 }
m + n is a perfect square.

Which of the two statements above, alone or in combination shall be sufficient to determine the numbers m and n?

(a)
Statements 1 and 2 together are not suﬃcient, and additional data is needed to answer the question.
(b)
Both statements taken together are suﬃcient to answer the question, but neither statement alone is suﬃcient.
(c)
Each statement alone is suﬃcient to answer the question.
(d)
Statement 2 alone is suﬃcient, but statement 1 alone is not suﬃcient to answer the question.
(e)
Statement 1 alone is suﬃcient, but statement 2 alone is not suﬃcient to answer the question.

3. XAT 2018 QADI | Data Sufficiency OMET Question

These statements provide data that may help answer the respective questions. Read the questions and the statements and determine if the data provided by the statements is sufficient or insufficient, on their own or together, to answer the questions. Accordingly, choose the appropriate option given below the questions.

A group of six friends noticed that the sum of their ages is the square of a prime number. What is the average age of the group?

Statement I: All members are between 50 and 85 years of age.
Statement II: The standard deviation of their ages is 4.6.

(a)
Statement I alone is sufficient to answer.
(b)
Statement II alone is sufficient to answer.
(c)
Either of the statement is sufficient to answer.
(d)
Both statements are required to answer.
(e)
Additional information is required.

Answer: Option A

Explanation :

From statement I:
Sum of their ages lies between (6 × 50) and (6 × 85), i.e., 300 and 510.
The only square of a prime number in this range is 192 = 381.
∴ The average of their ages = 381/6.
Hence, the question can be answered using statement I alone.

From statement II:
Standard Deviation = 4.6 = $\frac{\sqrt{\sum (x_{i} - \bar{x})}}{6}$
Since there are two unknowns here, the question cannot be answered using this statement alone.

Hence, option (a).

4. XAT 2018 QADI | Data Sufficiency OMET Question

Harry and Sunny have randomly picked 5 cards each from a pack of 10 cards, numbered from 1 to 10. Who has randomly picked the card with number 2 written on it?

Statement I: Sum of the numbers on the cards picked by Harry is 5 more than that of Sunny.
Statement II: One has exactly four even numbered cards while the other has exactly four odd numbered cards.

(a)
Statement I alone is sufficient to answer.
(b)
Statement II alone is sufficient to answer.
(c)
Either of the statement is sufficient to answer.
(d)
Both statements are required to answer.
(e)
Additional information is required.

Answer the next 2 questions based on the following information:

In an innings of a T20 cricket match (a team can bowl for 20 overs) 6 bowlers bowled from the fielding side, with a bowler allowed maximum of 4 overs. Only the three specialist bowlers bowled their full quota of 4 overs each, and the remaining 8 overs were shared among three non-specialist bowlers. The economy rates of four bowlers were 6, 6, 7 and 9 respectively. (Economy rate is the total number of runs conceded by a bowler divided by the number of overs bowled by that bowler). This however, does not include the data of the best bowler (lowest economy rate) and the worst bowler (highest economy rate). The number of overs bowled and the economy rate of any bowler are in integers.

5. XAT 2017 QADI | Data Sufficiency OMET Question

Read the two statements below:

S1: The worst bowler did not bowl the minimum number of overs.
S2: The best bowler is a specialist bowler.

Which of the above statements or their combinations can help arrive at the minimum number of overs bowled by a non-specialist bowler?

(a)
S1 only
(b)
S2 only
(c)
Either S1 or S2
(d)
S1 and S2 in combination
(e)
The minimum number of overs can be determined without using S1 or S2

6. XAT 2017 QADI | Data Sufficiency OMET Question

Read the two statements below:

S1: The economy rates of the specialist bowlers are lower than that of the non-specialist bowlers.
S2: The cumulative runs conceded by the three non-specialist bowlers were 1 more than those conceded by the three specialist bowlers.

Which of the above statements or their combinations can help arrive at the economy rate of the worst bowler?

(a)
S1 only
(b)
S2 only
(c)
Either S1 or S2
(d)
S1 and S2 in combination
(e)
The economy rate can be calculated without using S1 or S2.

7. XAT 2016 QADI | Data Sufficiency OMET Question

Anita, Biplove, Cheryl, Danish, Emily and Feroze compared their marks among themselves. Anita scored the highest marks, Biplove scored more than Danish. Cheryl scored more than at least two others and Emily had not scored the lowest.

Statement I: Exactly two members scored less than Cheryl.
Statement II: Emily and Feroze scored the same marks.

Which of the following statements would be sufficient to identify the one with the lowest marks?

(a)
Statement I only.
(b)
Statement II only.
(c)
Both Statement I and Statement II are required together.
(d)
Neither Statement I nor Statement II is sufficient.
(e)
Either Statement I or Statement II is sufficient.

8. XAT 2016 QADI | Data Sufficiency OMET Question

A person standing on the ground at point A saw an object at point B on the ground at a distance of 600 meters. The object started flying towards him at an angle of 30° with the ground. The person saw the object for the second time at point C flying at 30° angle with him. At point C, the object changed direction and continued flying upwards. The person saw the object for the third time when the object was directly above him. The object was flying at a constant speed of 10 kmph.

Find the angle at which the object was flying after the person saw it for the second time. You may use additional statement(s) if required.

Statement I: After changing direction the object took 3 more minutes than it had taken before.
Statement II: After changing direction the object travelled an additional 200√3 meters.

Which of the following is the correct option?

(a)
Statement I alone is sufficient to find the angle but statement II is not.
(b)
Statement II alone is sufficient to find the angle but statement I is not.
(c)
Statement I and Statement II are consistent with each other.
(d)
Statement I and Statement II are inconsistent with each other.
(e)
Neither Statement I nor Statement II is sufficient to find the angle.

Data Sufficiency - Previous Year CAT/MBA Questions

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