Question

2 pianos were sold at 12000 each. one is sold at a loss of 20% and the other is sold at a gain of 20%. find the loss or gain % for the entire transaction

Answer 1

loss = 12000 * 1.2
       = 14 400
           = 14400 - 12000
           =$2400
 gain = 12000/1.2
          =10000
           =12000- 10000
           $2000

therefore there was a loss of $2400 -$2000 = $400