Multiple choice

What is the total cost of painting if the faces containing only length and breadth are to be painted with yellow colour?

The length, breadth and height of a cuboid are 10 cm, 8 cm and 2 cm, respectively. All the faces of the cuboid are to be painted. The cost of painting with red colour is Rs. 5 per sq. cm. with green colour is Rs. 6 per sq. cm and with yellow is Rs. 10 per sq. cm. Now, answer the questions.

  1. Rs. 800

  2. Rs. 80

  3. Rs. 1600

  4. Rs. 960

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

Area to be painted = 2 (lb) = (2 x 10 x 8) sq. cm = 160 sq. cm Cost of painting = Rs. (10 x 160) = Rs. 1600

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