Lesson eLearning

In a village, 30 houses have walls made of different materials. If 18 houses have stone walls, 9 have mud walls, and the remaining houses have brick walls. What percentage of the houses have stone walls? Give your answer to the nearest whole number.

hard 3 marks Class 5 · EVS · Walls Tell Stories
Answer
60%

The correct answer is 60% — Thus 60%.

Step-by-step solution

  1. Total houses = 30.
  2. Stone walls = 18.
  3. Percentage = (18/30) × 100.
  4. 18 ÷ 30 = 0.6.
  5. 0.6 × 100 = 60.
  6. Thus 60%.
Common mistake: Dividing 100 by 30 instead of multiplying 18/30 by 100.

Concept tested: Calculating percentages of wall types

Published · How this solution was prepared and checked

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