1 .
The average of five numbers is 57.8. The average of the first and the second number is 77.5 and the average of the fourth and the fifth number is 46. What is the third number?
[ A ]    45
[ B ]    43
[ C ]    42 right
[ D ]    Can't be determined
[ E ]    none of these
Answer : Option C
Explanation :
Workspace Quiz
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