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Averages
Average of seven nos is 25. avg of first three of them is 35 while last three of
them is 20.
Read Solution (Total 3)
-
- Middle number is 10.
Average of seven no. is 25 ==> 25*7 = 175
First three number is 35 ==> 35*3 = 105
Last three number is 20 ==> 20*3 = 60
Middle number is = Total + (total of first 3num +total of last 3num)
= 175 - (105+60)
= 175 - 165
= 10 - 12 years agoHelpfull: Yes(21) No(0)
- avg of 7 numbers is 25 then sum of 7 nos is 175 . avg of first 3 nos is 35 then sum of first 3 nos is 105. avg of last 3 nos is 20 then sum of last 3 nos is 60. 105+x+60=175
x=10 - 10 years agoHelpfull: Yes(1) No(0)
- sum of all---------> 7*25=175
sum of 1st 3------> 3*35=105
sum of last 3------> 3*20=60
sum of 1st and last 3---->165
middle term=175-165=10
ans is 10 - 3 Months agoHelpfull: Yes(0) No(0)
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