Question

A design on the wall of room consists of thousand tiles of the shape of parallelogram . If altitude a find the cost of polishing the reason rupees 9.50 DM square

Answer 1

QUESTION NUMBER 4
Area of 1 tile =base ×height
=10cm×4cm
=40cm^2
=(40/100)dm^2 [Since 1cm^2 = 1/100dm^2]
=0.4dm^2
Area of 1000 tiles =0.4dm^2×1000
=400dm^2
Rate=9.50/dm^2
Cost =Rate ×Area
=9.50/dm^2×400dm^2
=3800