The line chart given below shows the cost price and selling price of four articles.
What is the ratio of average selling price of M and N to the average cost price of P and Q?
1
31 ∶ 18
2
10 ∶ 7
3
7 ∶ 10
4
19 ∶ 29
The line chart given below shows the cost price and selling price of four articles.
What is the ratio of average selling price of M and N to the average cost price of P and Q?