Question

cost of 20 pens is 240 so cost of 75 pens is ?​

Answer 1

Answer:

cost of 20 pen =240rs

cost of 1 pen =240/20

=12rs.

cost of 75 pens=75 ×12

=900rs

Answer 2

Cost of 20 pens = 240

coast of 1 pen is = 240÷20 pens

" " " " " " = ₹ 12

so , the cost of 75 pens = 75×12 pens

" " " " " " " " " " " " " " " " = ₹900

so, the cost of 75 pen is= ₹ 900