Question

my. new Questions..

what will be cost of fitting glass in 4 windows each of length 2.5 m and width 1.5 m at the rate of rupees 150 per ${m}^{2}$

Answer 1

Area of glass window = Length × Breadth

= 2.5 m * 1.5 m

= 3.75 m^2

Since, it has to be fitted in 4 windows

Total area = 3.75 * 4 = 15 m^2

Cost of fitting 1m^2 = 150 Rs

Cost of fitting 15m^2 = 15*150 = 2250 Rs

Answer 2

$\boxed{\textbf{According to question}}$

= > As there are 4 windows we should find the area of 4 glasses and muntiplying it by the cost given for 1 sq . m

= > Find its area by using area of rectangle $\underline\bold{(length × breadth)}$

= >$\underline\textbf{Dimensions of glass : }$

= >length = 2.5m

= >breadth = 1.5m

= >$\underline\textbf{Area of glass .}$

= >( length × breadth )

= >2.5m × 1.5m

= >3.75 ${m}^{2}$

= >$\underline\textbf{Area of four glasses }$

= >4 × 3.75

= >15.00 ${m}^{2}$

= >$\underline\textbf{Cost for}$ 1 ${m}^{2}$

= >RS .150

= >$\underline\textbf{Cost of 15}$ ${m}^{2}$

=>150 × 15

= >RS .2250.