Aptitude - Area - Discussion

Discussion Forum : Area - 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.

What is the area of the hall?

I. 

Material cost of flooring per square metre is Rs. 2.50

II. 

Labour cost of flooring the hall is Rs. 3500

 III. 

Total cost of flooring the hall is Rs. 14,500.

I and II only
II and III only
All I, II and III
Any two of the three
None of these
Answer: Option
Explanation:

  I. Material cost = Rs. 2.50 per m2

 II. Labour cost = Rs. 3500.

III. Total cost = Rs. 14,500.

Let the area be A sq. metres.

Material cost = Rs. (14500 - 3500) = Rs. 11,000.

5A = 11000     A = 11000 x 2 = 4400 m2.
2 5

Thus, all I, II and III are needed to get the answer.

Correct answer is (C).

Discussion:
7 comments Page 1 of 1.

Ankita said:   5 years ago
Total Material cost =14500-3500=rs.11000.
The material cost of flooring per square metre is Rs. 2.50.
[2.50=5/2.
or.
2 and 1/2 i;e 2+1/2 is 5/2].
Hence,
11000/(5/2).
11000*2/5 = 4400.

Rupam said:   1 decade ago
5/2 means this :

Material cost = 11000 and material cost per sq. Metre = 2.5 or 5/2.

So, since 5/2 = 1 sq.mtr.

Therefore, 11000 = 11000x(2/5)x1 = 4400.

Dilip said:   1 decade ago
Yes, Why A is multiplied by 5/2 . . . Please Reply

Soniya said:   6 years ago
I am not understanding this, please explain.

Aditi said:   9 years ago
Please explain me in detail.

Raagul said:   9 years ago
Thank you @Rupam.

Navya said:   1 decade ago
5A/2 means

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