Multiple choice

Given table shows number of matches won by two teams in different months. Team A won an average of 17 matches and Team B won an average of 19 matches. How many matches did each team win in December |||| |---|---|---| | Month| Team A| Team B| | Jan| 20| 10| | Feb| 15| 12| | Mar| 16| 15| | Apr| 18| 21| | May| 21| 16| | June| 30| 31| | July| 22| 26| | Aug| 7| 29| | Sep| 19| 23| | Oct| 12| 25| | Nov| 11| 18|

  1. Team A = 14; Team B = 14

  2. Team A = 13; Team B =2

  3. Team A = 19; Team B = 3

  4. Team A = 20; Team B = 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

To find December values, set up equations using the average formula. For Team A: (20+15+16+18+21+30+22+7+19+12+11+x)/12 = 17, which gives x = 13. For Team B: (10+12+15+21+16+31+26+29+23+25+18+y)/12 = 19, which gives y = 2. Option B correctly shows both values.

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