Question

The price of a commodity was raised to Rs 25 a kg from Rs 20 kg. find the percent increase​

Answer 1

Amount of increase= 25-20=5

Percentage increase

= $\sf \frac{5}{20} x 100 \\\sf</p><p>= \frac{5}{ \cancel{20}} x \cancel{100}\:\:5$

= 25%

25% increase

Answer 2

the percentage increase =((sp - co) / cp )×100

((25 - 20) / 20 )×100 = 25%