Question

if the cost price of a fan is rupees 420 and itsselling price is rupees 450
find the gain percent

Answer 1

gain = sp -cp
=450-420
=30
gain% = gain/cp ×100
30/420 ×100
=50/7
=7whole 1/7%

Answer 2

gain =SP -Cp
450 -420 = 30
gain percent = 30/420*100 = 1/14 *100 = 7whole 1/7 percent :)