The following bar graph indicates the sales of various items in a shop for one day. Study the bar graph carefully and answer the question that follows.
Find the ratio between the sale of wheat and rice and also the ratio between the sale of sugar and onions, respectively.
1
1 ∶ 2 and 1 ∶ 1
2
1 ∶ 1 and 2 ∶ 1
3
2 ∶ 1 and 1 ∶ 2
4
1 ∶ 1 and 1 ∶ 1