The bar graph shows the production of tablets and mobiles in four consecutive years, Calculate the ratio of mobiles in 2015 to tablets in 2018.
1
2 ∶ 5
2
2 ∶ 1
3
1 ∶ 2
4
1 ∶ 1
The bar graph shows the production of tablets and mobiles in four consecutive years, Calculate the ratio of mobiles in 2015 to tablets in 2018.