Average Practice Test 3

Question : 33 of 40

Marks: +1, -0

The average height of the members of the Basketball Team A is 5 feet 11 inches and that of B is 6 feet 2 inches. There are 20 players in Team A and 18 players in Team B. The overall average height is:

72.42 inches
72 inches
70.22 inches
70 inches

Validate

Solution:

Average height of the players in team A 20 = 5 feet 11 inches = 12 × 5 + 11 = 71 inches.
Total height of players in team A = 20 × 71 = 1,420 inches.
Similarly, height of 18 players in Team B = 6 feet 2 inches
6 × 12 + 2 = 74 inches.
Total height of players in Team B = 74 × 18 = 1,332
Overall average height of the Team A and B

={ \Total \height \of \players \in \Teams \A \and \B }/{\Number \of \players \in \Team \A \and \B }

={1420+1332}/{20+18}=2752/38=72.42

inches

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