In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
The velocity of an object is the rate of change of its position ______ respect to a frame of reference.
In the given Pie-chart, the comparative study of the production of Rice, Wheat, Sugar and Tea of a country is given. Study the Pie-Chart and answer the following questions.
From this diagram, the ratio of sum of wheat and sugar production to difference in production of rice and tea is