Question

average of 11 numbers is 20 if the average of 6 first number is 20 and average of last 6 number is 19 then find the middle number?​

Answer 1

Answer:

average=20

mean=sum/total

20=sum/11

sum=20×11=220

FIRST SIX

average=19

mean=sum/total

19=sum/6

sum=19×6=114

LAST SIX

average=22

mean=sum/total

22=sum/6

sum=22×6=132

therefore the middle number is 132-114=18

because it comes both in the first six and the last six numbers

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Answer 2

Answer:

hope it helps.....mark as brainliest if it helps u:)✌