What was the original price of an item if a discount of 20 percent reduced the price to rs.100?
a. rs.80
b. rs.120
c. rs.125
d. rs.150
e. rs.250

Let the original price be x.

After a discount of 20%, was effected.

It means the value was reduced to:  (100% - 20%) = 80% of the original value

80% of x = 100

(80/100)*x = 100

8x/10 = 100

8x = 10*100

x = (10*100)/8

x = 125

Original price = Rs.125

Option C.

Use a graph site then you will find your answer