Multiple choice

What is the cost of flooring of a rectangular hall? I. Length of the rectangle is 6 meter. II. Breadth of the rectangle is two-third of its length. III. Cost of flooring the area of 100 (cm^2) is Rs 45.

  1. I and III

  2. II and III

  3. All I, II and III

  4. Can’t be answered using all the above statements.

  5. None of the above.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

From I: Length = 6m. From II: Breadth = (2/3)*6 = 4m. Area = 6*4 = 24m² = 240000 cm². From III: Cost of 100 cm² = Rs 45, so cost per cm² = Rs 0.45. Total cost = 240000 * 0.45 = Rs 108000. All three statements are needed: I and II give dimensions, III gives rate. Without any one, the answer cannot be determined.

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