Question

A man sold two radio at price at 6000 rs each he got 10% profit on first radio 20% on the second radio then find what % of profit or loss he got

Answer 1

First radio:
SP = 6000
profit = 10%

CP = SP × 100/(100+profit%)

=> CP = 6000 × 100/(100+10)

=>CP = 6000 × 100/(110)

=> CP = 5455
_____________________

Second radio:
SP = 6000
profit = 20%

CP = SP × 100/(100+profit%)

=> CP = 6000 × 100/(100+20)

=>CP = 6000 × 100/(120)

=> CP = 5000
____________________

Total SP = 6000×2 = 12000

Total CP = 5000+5455 = 10455

total profit = 12000 - 10455 = 1545

profit% = profit/CP × 100 = 1545/10455 × 100 =14.78 %