Question 5 of 29intermediate🔧 ApplyNumerical2 marks

The thickness of a rupee coin is 1.45 mm. What is the total height of the cylinder formed by placing 36 rupee coins one over the other? Write the answer in centimeters.

Correct Answer

Given: Thickness of one coin = 1.45 mm Number of coins = 36

Formula: Total height = Thickness × Number of coins

Substitution: Total height = 1.45×361.45 \times 36

Calculation: Total height = 52.2 mm Convert to cm: 52.2 ÷ 10 = 5.22 cm

Answer: The total height is 5.22 cm.

Exercise: Figure it Out (Section 1) | Q: 5 | (Page Page 7)
For More Understanding

Explanation

First find the total height in mm by multiplying 1.45 by 36, then convert to cm by dividing by 10.

Solution Steps

  1. Total height in mm = 1.45×361.45 \times 36 = 52.2 mm

  2. Convert to cm: 52.2 ÷ 10 = 5.22 cm

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