1.

1). 52). 43). 64). 3

Answer»

AVERAGE of N numbers = 12

∴ Sum of N numbers = 12N

According to problem,

⇒ 12N - 6 = 14(N - 1)

⇒ 12N - 6 = 14N - 14

2N = 8

⇒ N = 4



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