Quantitative Aptitude

Data Sufficiency 2

Quantitative Aptitude Exercise Mode

Data Sufficiency 2

Practice and master this topic with our carefully crafted questions.

1 Questions
2 Minutes
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Directions to Solve

Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.

Question 1

If both the pipes are opened, how many hours will be taken to fill the tank?

I. The capacity of the tank is 400 litres.

II. The pipe A fills the tank in 4 hours.

III. The pipe B fills the tank in 6 hours.

A
Only I and II
B
Only II and III
C
All I, II and III
D
Any two of the three
E
Even with all the three statements, answer cannot be given.
Correct Answer: Option B

II. Part of the tank filled by A in 1 hour = 1
4

III. Part of the tank filled by B in 1 hour = 1
6

(A + B)'s 1 hour's work = 1 + 1 = 5
4 6 12

A and B will fill the tank in 12 hrs = 2 hrs 24 min.
5

So, II and III are needed.

Correct answer is (B).