Question

A room is 8 m long, 7.6 m wide and 3.5 m high. The walls are to be distempered, allowing 25 m fordoors, windows, etc. Find the total area to be distempered.​

Answer 1

$\bf{\underline{Question:-}}$

A room is 8 m long, 7.6 m wide and 3.5 m high. The walls are to be distempered, allowing 25 m for doors, windows, etc. Find the total area to be distempered.

$\bf{\underline{Given:-}}$

• Length = 8m
• width = 7.6 m
• height = 3.5m
• Area of four wall = 25m²

$\bf{\underline{To\:Find:-}}$

• Total Area to be distempered = ?

$\bf{\underline{Formula:-}}$

Area of 4 walls = 2 ( length + Width ) × height

$\bf{\underline{Solution:-}}$

→ Area of 4 walls - 25m²

→ 2 ( lenght + width ) × height - 25

→ 2 ( 8 + 7 . 6 ) × 3.5 - 25

→ 2 × 3.5 ( 8 + 7 . 6 ) - 25

→ 7 ( 15 . 6 ) - 25

→ 109 . 2 - 25

→ 84.2 m²

$\bf{\underline{Hence:-}}$

• Area of four walls = 84.2 m²