Saved Bookmarks
| 1. |
A door of length 2m and bradth 1.5m is on wall.the length of the wall is 4.5 m and breadth is 3.6m find the cost of white washing the wall at the rate of Rs. 20 per m |
|
Answer» ₹264Step-by-step explanation:Here,length of door = 2 mbreadth of door = 1.5 MAREA of door = length × breadth = 2 × 1.5 = 3 m²Now,length of wall = 4.5 mbreadth of wall = 3.6 mArea of wall = length × breadth = 4.5 × 3.6 = 16.2 m² And,AREA of wall for WHITE washing = (area of whole wall) - (area of door) = 16.2 - 3 m² = 13.2 m²Now,Cost of white washing = ₹20 per m² = 13.2 × 20 = ₹264 |
|