Question

please solve all the problems = find percentage of increase or decrease = price of shirt decreased from Rs.80 to Rs. 60.
2. mark in a test increased from 20 to 30

Answer 1

1. initially price =80
last price =60
difference in price =(80-60)=20
therefore percentage of decrease =20/80*100
=100/4
=25%

2. initial mrks=20
last mrks =30
difference in mrks =(30-20)=10
therefore percentage of increase
=10\20*100
=100/2
=50%