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Aptitude - Area - Discussion

@ : Home > Aptitude > Area > Data Sufficiency 2 - Discussion

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"Do not wait for leaders; do it alone, person to person."
- Mother Teresa
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.

[A]. I and II only
[B]. II and III only
[C]. All I, II and III
[D]. Any two of the three
[E]. None of these

Answer: Option A

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).
Navya said: (Sat, Jul 16, 2011 12:07:16 PM)    
 
5A/2 means
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