The following line graph represents the percentage increases in the prices of tea, coffee and rice over their respective prices in preceding year
If the ratio of the prices of tea, coffee and rice in 2012 was 2 : 1 : 2 respectively, then what was the overall approximate percentage increase in the prices of tea, coffee and rice from 2012 to 2014?
1
23.38%
2
18.56%
3
27.44%
4
30.22%