The average of 35 consecutive natural numbers is N. Dropping the first – McqOptions

MCQOPTIONS

1.	The average of 35 consecutive natural numbers is N. Dropping the first 10 numbers and including the next 10 numbers, the average is changed to M. If the value of M2 - N2 = 600, then the average of 3M and 5N is:
A.	90
B.	115
C.	100
D.	120
Answer» C. 100

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