Question

Each side of a square handkerchief is 16 cm. Find the cost of a lace needed to be put around the handkerchief if it cost rs 125.

Answer 1

if RS 125 is per cm then the answer is....
perimeter=4s=4×16
=64
cost of lace needed to put a round handkerchief=125×64
=8000/-

Answer 2

each side of the handkerchief =16 cm perimeter = 4×side=4×16=64 can cost of 1 metre=125 cm cost of 100 cm=125÷100=rupees 1.25 cost of the lace=1.25 ×64=80