Question

The cost of 5 pens is Rs 30. Find the cost of 12 pens.

Answer 1

cost of one pen = 30/ 5= rs. 6
cost of 12 = 12 x 6 = rs72

Answer 2

Answer : $\bold{Rupees \: 72}$


Explanation -

Given :

Cost of 5 pens = Rs 30



Finding the cost of 1 pen -

5 pens = Rs 30

1 pen = 30/5 = 6

Cost of 1 pen is Rs 6 .


Finding the cost of 12 pens -

1 pen = Rs 6

12 pens = 12 x 6 = 72

Cost of 12 pens = Rs 72.


Hence :

Answer : Cost of 12 pens = Rupees 72.