Question

Cost of 1 pen is rupees 5, cost of n pens is ------------.

4) Ratio of 23 and 161 is-------------.

5) In proportion the second and third terms are called as -----------.
​

Answer 1

Answer:

3) Given:- Cost of one pe = ₹5

Cost of 'n' pen = ?

So,

Cost of 'n' pen = 5×n

= ₹5n

----------------------------------

4) ratio of 23&161

=23:161

=1:7

-----------------------------------

5) second and third terms of proportion are called 'means'

PLZ MARK AS BRIANLIEST,FLW ME AND THX FOR THE SUPERB QUESTION

Answer 2

cost of n pen = 5n

4) 1:7

5) means