Subject
Quantitative Aptitude
Topic
Average
The average of six numbers is 30. If the average of first four is 25 and that of last eight is 35, the fourth number is:
The average of six numbers is 30. If the average of first four is 25 and that of last eight is 35, the fourth number is:
ক)
25খ)
30গ)
35ঘ)
40Explanation
Fourth number = (4*25+3*35-6*30) =25Related questions
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