A floral design on the floor of a building consists of 280 tiles Each tile is in the shape of a para...

Question

A floral design on the floor of a building consists of 280 tiles Each tile is in the shape of a parallelogram of altitude 3 cm and base 5 cm Find the cost of polishing the design at a rate of 50 paise per cm2

Accepted Answer

Given altitude of a tile 3 cm Base of a tile 5 cm Area of one tile Attitude x Base 5 cm x 3 cm 15 cm2 Area of 280 tiles 280 x 15 cm2 4200 cm2 Rate of polishing the tile Rs 05 per cm2 Thus Total cost of polishing the design 4200 x 05 Rs 2100

RD Sharma Solutions Class 7 Mathematics Solutions for Mensuration 1 Exercise 20.3 in Chapter 20 - Mensuration 1