Question

If the Cost price of 15 pens is equal to selling price of 20pens find loss percentage

Answer 1

Step-by-step explanation:

15 CP = 20 SP

CP : SP

20 : 15

% = 5/20×100

= 25%

Answer 2

Answer:

loss percentage = 25%

Step-by-step explanation:

cp of 15 pens = sp of 20 pen

                          let sp of 1 pen be ₹1

                           therefore ₹ 20 for 20 pens

₹ 20 of 20 pens = cp of 15 pens

therefore cp of 15 pens = ₹20

cp of 1 pen = ₹20/15 = ₹4/3

since cp = 4/3 and sp = 1

we will equalize the denominator

cp = 4/3 and sp = 3/3

cp> sp

therefore loss  incurred

loss %  = loss/cp  x 100

loss = cp - sp = 4/3 - 3/3 = 1/3

= 1/3/ 4/3 x 100

= 25 %

i hope you understand