Question

ratio of cost price and selling price 5 proportional 4 then find the loss percentage of loss

Answer 1

Cost Price : Selling price = 5 : 4

Let the CP be 5a

SP = 4a

Loss = CP - SP

Loss = 5a - 4a = a

Loss % = Loss × 100 / CP

= a × 100 / 5a

= 100 / 5

= 20%

Answer 2

Cost Price : Selling price = 5 : 4

Let the CP be 5a

SP = 4a

Loss = CP - SP

Loss = 5a - 4a = a

Loss % = Loss × 100 / CP

= a × 100 / 5a

= 100 / 5

= 20%

hope it helped ⚡