Question

an article was sold at a gain of 15%. had it been sold for ₹108 more, the profit would have been 20%. Find is cost price.

Answer 1

Let Cost of Article is X
Sold it for 15% then Sale Price is X + X(15/100) = (115X)/100
If it is sold for 108 more then Sale Price would be X+X(20/100) =120X/100

Now (120X)/100 - (115X)/100 = 108
(5X)/100 = 108
X = (108x100)/5
X = 2160

Or for direct Approach 20% - 15% = 5%
5% = 108
1% = 108/5
100% = (108×100)/5