If the selling price of 10 pens is the same as the cost price of 12 pe

1.	If the selling price of 10 pens is the same as the cost price of 12 pens then gain percent is2%12%20%25%
Answer» (3) 20% let us consider the CP as x SP of 1 pen = x/10 CP of 1 pen = x/12 Since SP is more than CP its Gain Gain = SP – CP = x/10 – x/12 = x/60 ∴ Gain% = (Gain × 100) /CP = ((x/60) × 100) / (x/12) = 20%

If the selling price of 10 pens is the same as the cost price of 12 pens then gain percent is2%12%20%25%

Answer»

(3) 20%

let us consider the CP as x

SP of 1 pen = x/10

CP of 1 pen = x/12

Since SP is more than CP its Gain

Gain = SP – CP

= x/10 – x/12

= x/60

∴ Gain% = (Gain × 100) /CP

= ((x/60) × 100) / (x/12)

= 20%