Question

ram sold two tables at the rate of rupees 492 each.on,one he gained 20% and on the other, he lost 20%. find his net gain or loss percent in the whole distribution​

Answer 1

In case where gain and loss percentage is common on same selling price,always a loss occurs in total deal. And this can be calculated by a shortcut

Loss on total deal

= [ common loss or gain percentage / 10 ]

= [ 20 / 10 ] whole square

= [ 400 / 100 ]

= 4 %

I am gonna keep a pic of an another method which is a bit lengthy but easy one