The average of six numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. What is the average of the remaining two numbers ?
A) 3.6 B) 4.6 C) 6.5 D) 7.3
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Answer:
Given
Average of six number =3.95
Total sum of six numbers=3.95*6=23.7
Then
Average of two number=3.4
Total sum of 2 number=3.4*2=6.8
or,
Average of other two number=3.85
Total sum=3.85*2=7.7
Hence,
Sum of another two number=23.7-(6.8+7.7)=23.7-14.5=9.2
So,Average of another two no=9.2/2=4.6
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