The profit earned by selling a phone for ₹18000 is same as the loss incussed after selling it for ₹16,800.What is the cost price of the phone?

2x= 18000-16800
= 1200
therefore X= 600.
hence, we know that,
cost price = selling price _ profit
(or)
=selling price + loss

=18000_600=17400
(or)
=16800+600=17400.

let loss/gain =x rupees
cp=18000-x (1)
cp=16800+x. (2)
(1)=(2)
16800+x=18000-x
2x=1200
x= 600
cp=18000-600= 17400

dude
split the difference and divide by 2
add or subtract to major or minor