Sale (in thousands) of five battery types, 2015–2021.
| Year | 4AH | 7AH | 32AH | 35AH | 55AH |
|---|---|---|---|---|---|
| 2015 | 75 | 144 | 114 | 102 | 108 |
| 2016 | 90 | 126 | 102 | 84 | 126 |
| 2017 | 96 | 114 | 75 | 105 | 135 |
| 2018 | 105 | 90 | 150 | 90 | 90 |
| 2019 | 90 | 75 | 135 | 75 | 90 |
| 2020 | 105 | 60 | 165 | 45 | 120 |
| 2021 | 115 | 85 | 160 | 100 | 145 |
The total sales over all seven years is maximum for which type of battery?
A4AH
B7AH
C32AH ✓ Correct
D35AH
Correct answer: (C) 32AH
Explanation
The answer is 32AH.
The seven-year totals are 676 thousand for 4AH, 694 for 7AH, 901 for 32AH, 601 for 35AH and 814 for 55AH.
The 32AH total of 901 thousand is the largest.
So the 32AH battery has the maximum total sales.
The others fall below this figure.
So no other type sells more over the seven years.
So the answer is 32AH.
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