The average of 10 numbers is -10. If the sum of 6 of them is 100, what is the average of the other 4 ?

A -100
B -50
C 50

Correct Answer: -50

                         Sum of 10 numbers = 10*(-10) = -100                                               Sum of 6 numbers = 100(Doing Subtraction),   Sum of other 4 numbers = -100-100 = -200                                       Average of other 4 numbers = -200/4 = -50 (Ans)
Bissoy MCQ
#গণিত #গড় (Average) #Bangladesh Krishi Bank #Krishi Bank - Senior Officer - 20.04.2012

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