Question

A floral design of a building consists of 3000 tiles each tiles is in the shape of of parallelogram of altitude 3cm and base 5cm find the cost of polishing the design at the rate of 80paise per dm square

Answer 1

Area of parallelogram =base×altitide

B=5

A=3

Area of 1 tile= b×h

=3×5

15

There are 3000 tiles

So area of 3000 tiles =15×3000=45000 sq dm

Cost of polishing 1 sq dm=80 p=0.8 rs

Total cost=45000×0.8=36000RS