Attempt following question by selecting a choice to answer.
e
From the double line graph, find the difference between the average number of
ice-cream cones sold in the two successive years.
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D.
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A
Step 1: Average number of cones sold in 1992
[Add the number of cones sold in all the months and divide by the number of months.]= (10+20+40+50+60)5 = 1805= 36
Step 2: Average number of cones sold in 1991[Add the number of cones sold in all the months of 1991 and divide by 5.]= (20+30+50+20+40)5 = 1605= 32
Step 3: The difference between the average number of cones = average in 1992 - average in 1991[Subtract.]= 36 - 32 = 4