Question 11 of 18intermediate🔧 ApplyNumerical3 marks

The length of a board is 2 metres. Sonu has a decorative border sticker which is 20 cm long. How many such stickers are needed to cover the length of the board completely?

Correct Answer

Given: Length of board = 2 metres; Length of sticker = 20 cm.

Conversion: 2 metres = 2×1002 \times 100 = 200 cm

Calculation: Number of stickers = 200 ÷ 20 = 10

Answer: 10 stickers are needed to cover the length of the board completely.

Exercise: Let Us Do (Section 2) | Q: 9 | (Page Page 10)
For More Understanding

Explanation

The chapter teaches conversion between metres and centimetres. The board is 2 metres long, which equals 200 centimetres. Each sticker is 20 cm long. Therefore, 200 ÷ 20 = 10 stickers are needed.

Solution Steps

  1. Step 1: Convert the board length from metres to centimetres

  2. Step 2: 2 metres = 2×1002 \times 100 = 200 cm

  3. Step 3: Length of one sticker = 20 cm

  4. Step 4: Number of stickers needed = 200 ÷ 20 = 10 stickers

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