The bar diagram below shows the number of calculators sold by 8 different stores.
What is the ratio of the total number of calculators sold by M and N to the total number of calculators sold by P and Q?
1
3 ∶ 1
2
5 ∶ 1
3
4 ∶ 1
4
6 ∶ 1
The bar diagram below shows the number of calculators sold by 8 different stores.
What is the ratio of the total number of calculators sold by M and N to the total number of calculators sold by P and Q?