Question

Determine if the following ratio form a proportion:

25 cm : 1 m and Rs 40 : Rs 160

Answer 1

25 cm:1 m and Rs 40:Rs 160

(or) 25 cm:100 cm and Rs 40:Rs 160

`25/100=(25 ​÷ 25)/(100 ​​÷ 25)=1/4` and `40/160=( 40 ÷ 40)/(160 ​÷ 40)=1/4`

Hence, they are in proportion.