SOLUTION: Please help me quickly....The average score of a cricketer for 10 match is 43.9 runs. If the average for the first six matches is 53, the average for last four matches is a)17.15

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Question 360473: Please help me quickly....The average score of a cricketer for 10 match is 43.9 runs. If the average for the first six matches is 53, the average for last four matches is
a)17.15
b)29.75
c)30.25
d)31
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

*Note average = sum of the scores /total matches

43.9 = Sum of the ten scores/10

53 = Sum of those first six scores/6

write as we read, letting x be the average for the last four matches

sum of the first scores is 6*53 = 318

43.9 = (318 + x)/10

439 = 318 + x

121 = x

121/4 = 30.25

Answer c would be the correct choice