Question

If the price for 1dozen pens decreases by ₹6, then we can get 3 extra pens on ₹30.
When the price is not decreased what is the price of 1 dozen pens?

Geniuses please answer fast! (if you can do Maths very well.)​

Answer 1

Answer:

let 12 pen= x

A.t.q, 12pen= x- 6 , 15pen= 30 , 30= x-6-3,x= 21 so 12pen = 21