The ratio of total production of rice in the mentioned states to that of wheat in those states, is :

As per given bar graph , we can see that
Total production of rice in all state = (8 + 10 + 4 + 4 + 2) = 28 Lakhs tonnes
Total production of wheat in all state = (16 + 2 + 4 + 2 + 6) = 30 Lakhs tonnes
∴ Required ratio = Total production of Rice : Total production of Wheat
∴ Required ratio = 28 : 30 = 14 : 15