The daily rainfall data of a week is shown. What is the total rainfall on Friday, Saturday and Sunday? (Note: 1 drop = 4 inches)
A
56 inches
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B
80 inches
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C
68 inches
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D
64 inches
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Solution
The correct option is B 80 inches If we observe the pictograph, there are 4 drops on Saturday, 9 drops on Sunday and 7 drops on Friday. Given: Each drop represents 4 inches of rainfall. Then, total rainfall on Friday and on weekends is (4 + 9 + 7) × 4 = 20 × 4 = 80 inches