Multiple choice

A painter uses a sheet measuring 30 cm by 40 cm lengthwise. If a margin of 5 cm is left on all four sides, then find the area of the margin.

  1. 500 cm2

  2. 700 cm2

  3. 600 cm2

  4. 400 cm2

  5. 300 cm2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total are of the sheet = 40*30 = 1200 cm2  Length of sheet without margin = 40 - 5 - 5 = 30 cm Breadth of sheet without margin = 30 - 5 - 5 = 20 cm Area of sheet without margin = 30*20 = 600 cm2 Now, area of margin = 1200 - 600 = 600 cm2.

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