Multiple choice

What is the cost of painting the two adjacent walls of a rectangular hall which has no windows or doors? A. The area of the base of the hall is 24 sq. meters. B. The breadth, length and the height of the hall are in the ratio of 4: 6: 5. C. Area of one wall is 30 square meters.

  1. Only A and B

  2. Only B

  3. Only C

  4. Either A or C

  5. Data inadequate
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Painting cost requires cost per unit area. A gives only floor area. B gives ratios but no dimensions. C gives wall area but not which wall. Even combining all, we don't know cost per square meter or which two adjacent walls to paint. Data is inadequate.

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