Question

A floral design on the floor consists of 3000 tiles.Each tile is in the shape of a parallelogram of altitude 3 cm and Base 5 cm , find cost of polishing the design at the rate of 80 paise per dm
square

Answer 1

area of parallelogram of one tile =b×h

=5×3

=15cm^2

area of 3000tiles=3000×15=45000
cost of polishing 1tile =80paise
convert into rupees=80/100=4/5
cost of polishing 45000tiles=45000×4/5=36000rupees

Answer 2

Answer:

area of parallelogram of one tile =base×height

                                                      =5×3

                                                      =15cm^2

area of 3000tiles= 3000×15

                              =45000

cost of polishing 1tile =80paise

convert into rupees=80/100

                                  =4/5

cost of polishing 45000tiles=45000×4/5

                                             =36000rupees

This is the correct answer