Question

the area of a rectangular field is 460 CM square if the length is 15% more than the breadth then what is the breadth

Answer 1

let breadth=xcm
then,length=(115x/100)cm
therefore,x*115x/100=460
x^2=460*100/115
x^2=400
x^2=20cm

Answer 2

Let the breath of rectangular field be (a cm).
Then,
length = a + 15% of a
length = a + 15÷100 × a
length = a + 15a/
length = 115a/

area = 460 sq. cm
And we know that,
area of rectangle = length × breath
area of rectangular field = a cm × 115a/ 100 cm

460 = a × 115a\ 100
a = 20
breadth = a cm = 20 cm
and
length = 115a/ 100 = 23 cm