Question

How to find cp if sp and profit percentage is given?​

Answer 1

Examples on finding cp when sp and profit or loss percent are given :

1) A man sells his scooter for $18000 making a profit of 20%. How much did the scooter cost him?

Solution:

Let c.p = $100

As there is profit % as 20 so s.p = 100 + 20 = $120

Let the c.p of the scooter be $x

Now make proportions as

100/x = 120/18000

Cross multiply

120x = 100 . 18000

120x = 1,800,000

So, x = 1,800,000/120

x = $15000

Hence the cost price of the scooter is $15000.