Question

the average of 12 test scores is 55. when two highest and two lowest scores are dropped the average of the remaining score has dropped the average of remaining score is 50, the average score dropped is
1: 55
2: 65
3: 60
4: 50

Answer 1

Answer:

2: 65

Step-by-step explanation:

total score = 12 x 55 = 660

when two lowest and highest no. are removed

there are 8 no. left

so the total score is = 8 x 50 = 400

660 - 400 = 260 -- which is the total of the 4 no.

so 260/4 = 65

Answer 2

Answer:

65

Step-by-step explanation:

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