Question

b) In a stationery shop, a book costs Rs 400 and a pen costs Rs 20. Find the
ratio of the cost of a pen to the cost of a book
) 400:20
(ii) 20:1
(iii) 1:20
(iv) 40:20​

Answer 1

Answer:

20:1

Step-by-step explanation:

please mark me the brainliest answer

Answer 2

Answer:

20: 1

Step-by-step explanation:

I I don't know what is correct answer I I am thinking this answer