Question

the cost of 3 pen is 90. what will be the cost of 15 pen?​

Answer 1

Answer:

Cost of 3 pen is 90

Cost of 1 pen is 90/3 =30

Cost of 15 pens is 30*15=450

Step-by-step explanation:

Answer 2

Answer:

if the cost of 3 pen is 30 then cost of 1 pen = 30 there fore cost of 15pen =15×30=450