Question

a garden is in the shape of rectangle of length 100 M and 60 M the margin of width 3 M is left all around inside the garden find the area left for flower beds, lawn e. t. c between the margins also find the area of margin​

Answer 1

1st find area of full garden

I.e.100*60=6000

now substract i.e 100-3-3(margin left from right & left) & 60-3-3(margin left from top & bottom)

Now find area of garden leaving margin

so,94*34=3196

subtract 3196 from 6000 to get land left for flower beds

6000-3196=2804

so 2,804 m^2 area is left for flower beds

Answer 2

$length \: of \: rectangular \: garden \: = 100m \\ breadth \: of \: rectangular \: garden = 60m \\ area \: of \: rectangular \: garden \: = length \: \times \: breadth \\ = 100 \times 60 \\ = 6000c.m. {}^{2} \\ \: total \: length \: of \: garden \: = 100 + 3 = 103 \\ total \: breadth \: of \: garden \: = 60 + 3 = 63 \\ total \: area \: of \: garden = l \times b \\ = 103 \times 63 \\ = 6489$

l