Question

A big hall of house of Mousumi is in the form of rectangle of which length and breadth are in the ratio 9:5and perimeter is 140meter.Mousumi wants to cover the floor of her hall with rectangular tiles of dimension 25cm.×20cm.The rate of each 100tiles is rs 500.Let us calculate the cost for covering the floor with tiles is​

Answer 1

$\fontsize{18}{10}{\textup{\textbf{The required amount is Rs 122500}}}$

Step-by-step explanation:

Let the lenth be 9x and breadth be 5x

So 2*9x+2*5x=140, the perimeter

=>28x=140

=>x=5

So the length is 9*5 and breadth is 5*5

length=45

breadth=25

Area of the hall=45*25 m^2

Total tiles required =45*25*100*100/(25*20)   converting the numerator from meter to centimeter

=22500 tiles

100 tiles cost Rs 500

So 22500 tiles cost = Rs 22500*500/100

= Rs 122500