Question

If the selling price of 10pens is the same as the cost price of 12pens then the gain percent is what

Answer 1

Step-by-step explanation:

selling price of ten pens = selling price of 12 pens

Answer 2

let CP=X

AND SP=y

Therefore, CP=12X & SP=10y

SP=CP(given)

10y=12x

let cost price (x) of 1 pen be Rs1

therefore, CP of 12 pens =Rs 12

12=10y

y=1.2

gain = SP-CP

=( 1.2-1)Rs

= 0.2Rs

gain% = gain/CP ×100

= 0.2/1×100

=20%

therefore, gain% = 20%