Aptitude - Average - Discussion

Discussion Forum : Average - Data Sufficiency 2 (Q.No. 1)
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.


1.

How many marks did Tarun secure in English?

I. 

The average mark obtained by Tarun in four subjects including English is 60.

 II. 

The total marks obtained by him in English and Mathematics together are 170.

 III. 

The total marks obtained by him in Mathematics and Science together are 180.

I and II only
II and III only
I and III only
All I, II and III
None of these
Answer: Option
Explanation:

I gives, total marks in 4 subjects = (60 x 4) = 240.

II gives, E + M = 170

III gives, M + S = 180.

Thus, none of (A), (B), (C), (D) is true.

Correct answer is (E).

Discussion:
17 comments Page 2 of 2.

Lakshmi S S said:   1 decade ago
Can any one tell me then what is required to solve this type of issues ?

Shaby said:   1 decade ago
@Manish - I agree with you.
@Shohit Dube - your solution is wrong.

Ankur said:   8 years ago
Also M+E= 180 so M is 150.
But S+M= 170 S= 40
Here M= 130.

Bhushi said:   1 decade ago
What about one subject is having 0 marks?

Bhavya said:   8 years ago
Answer should be the option : D, right.
(3)

Som said:   3 years ago
Option D should be the correct answer.
(1)

Bala said:   8 years ago
@Anant.

So the answer is all three?


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