গড় (Average) | Southeast Bank Ltd - Probationary Officer - 22.06.2012

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Questions

The average of five numbers is 6.9. If one of the numbers is deleted, the average of the remaining numbers is 4.4. What is the value of the number deleted?

If the average (arithmetic mean) of a,b, and c is 40, what is the average (arithmetic mean) of (3a+10), (3b+10), and (3c+10)?