Question

please answer the question rahul bought
I will mark you as the brainliest ​

Answer 1

use gain percent formula

Answer 2

cost of dozen pen = 120

1 pen = 15

1 x 12 pens = 12 x 15 = 180

profit = sp - cp

= 180 - 120

= 60

profit % = profit / cp x 100

= 60/120 x 100

= 50%