The bar graph shows the number of cakes sold at a shop in four days. What is the difference in number of cakes between the highest and the lowest daily sale?
A
20
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B
35
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C
30
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D
40
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Solution
The correct option is B20 From the above bar graph, the highest number of cakes sold is 45 (i.e., on Sunday).
and the lowest number of cakes sold is 25 (i.e., on Monday).
Therefore, the difference between the highest and lowest number of cakes =45−25=20.