Question

A hall room 25 m long and 20 m wide is surrounded by a verandah 2.5 m wide. Find the cost of the flooring the verandah at ₹ 1.65 per sq. m.

Answer 1

Given:

Hall length = 25 m, breadth = 20 m.

Verandah width = 2.5 m.

Rate for flooring = ₹ 1.65 per m².

Step-wise calculation:

1. Outer length

= 25 + 2 × 2.5 

= 25 + 5

= 30 m

2. Outer breadth

= 20 + 2 × 2.5 

= 20 + 5

= 25 m

3. Area of outer rectangle

= 30 × 25 

= 750 m²

4. Area of hall

= 25 × 20 

= 500 m²

5. Area of verandah

= 750 – 500 

= 250 m²

6. Cost

= 250 × ₹ 1.65 

= ₹ 412.50

The cost of flooring the verandah is ₹ 412.50.