Question

A piece of ground measures 19m 2.5dm by 12m 5dm. From the centre of each side a path 2m wide goes across to the centre of the opposite side. Find the cost of paving these paths @ Rs.12.32/sq.m.

Answer 1

R.E.F image

$\to$ Length of ground

$=19m2.5dm=19+\frac{2.5}{10}=19.25m$

Similarly width $=12+\frac{5}{10}=12.50m$

Area of $b+h=l\times 2+b\times 2-2\times 2$ common

$=(l+b)2-4$

$=2\left(31.75\right)-4$

$=63.5-4=59.5m^2$

cost $=59.5\times 12.32=733.04Rs$