Question

on selling a chair for rupees 680 am and losses 15% to gain 15% it must be sold for

Answer 1

CP=100*SP/(100-LOSS%)
CP=100*680/(100-15)
CP=68000/85
CP=800

SO, SP TO GAIN 15% IS,
SP=(100+GAIN%)*CP/100
SP=(100+15)*800/100
SP=115*800/100
SP=920 RS