Multiple choice

Passage

Directions: Number of Boys and Girls (in hundreds) in six different years in 5 different schools data is given below: Schools A B C D E Years Boys Girls Boys Girls Boys Girls Boys Girls Boys Girls 2014 3.3 3.6 5.2 3.1 5.5 4.5 2.4 1.4 6.5 6.6 2015 6.6 4.2 4.9 2.2 6.9 3.3 4.4 2.3 5.5 3.6 2016 9.3 6.9 4.7 4.2 5.8 4.9 6.4 3.3 2.7 2.4 2017 5.4 9.6 6.3 5.4 6.6 5.2 5.3 5.4 5.4 5.7 2018 8.4 12.9 7.5 5.9 8.7 6.6 12.1 5.2 6.8 6.5 2019 12.3 14.4 9.8 4.4 11.7 4.2 12.2 9.4 10.8 12.7

What is the average number of girls in school A in all years taken together?

  1. 600

  2. 800

  3. 860

  4. 760
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Girls in school A: 3.6 + 4.2 + 6.9 + 9.6 + 12.9 + 14.4 = 51.6 (hundreds). Average = 51.6 / 6 = 8.6 (hundreds) = 860.

AI explanation

The number of girls in school A across the six years are 360, 420, 690, 960, 1290 and 1440 (converting the table values from hundreds to actual numbers). The total number of girls is 360 + 420 + 690 + 960 + 1290 + 1440 = 5160. Dividing this total by 6 gives an average of 860.

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