The table given below shows the number of pencils sold by 7 shops.

What is the ratio of the number of pencils sold by S3 to the number of pencils sold by S6?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 7: 13.
Calculations:
Number of pencils sold by S3 = 70
Number of pencils sold by S6 = 130
Required ratio = 70 : 130 = 7 : 13