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Area - General Aptitude

Each of the questions given below consists of a statement and / or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is / are sufficient to answer the given question. Read the both statements and
  • Give answer (A) if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question.
  • Give answer (B) if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
  • Give answer (C) if the data either in Statement I or in Statement II alone are sufficient to answer the question.
  • Give answer (D) if the data even in both Statements I and II together are not sufficient to answer the question.
  • Give answer(E) if the data in both Statements I and II together are necessary to answer the question.
Q1:

The area of playground is 1600 m2. What is the perimeter?
I.  It is a perfect square playground.
 II.  It costs Rs. 3200 to put a fence around the playground at the rate of Rs. 20 per metre.

A I alone sufficient while II alone not sufficient to answer

B II alone sufficient while I alone not sufficient to answer

C Either I or II alone sufficient to answer

D Both I and II are not sufficient to answer

E Both I and II are necessary to answer

ANS:C - Either I or II alone sufficient to answer

Area = 1600 m2.  I. Side = 1600 m = 40 m. So, perimeter = (40 x 4) m = 160 m.  I alone gives the answer.

II. Perimeter = Total cost = 3200 m = 160 m.
Cost per metre 20
 II alone gives the answer.  Correct answer is (C).