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The mean of five numbers is 50, out of which mean of 4 numbers is 46, find the 5th number.

(A) 4 

(B) 20 

(C) 434 

(D) 66

1 Answer

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Best answer

5th number = Sum of five numbers – Sum of four numbers 

= (5 x 50) – (4 x 46) 

= 250 – 184

= 66 

Correct option is (D) 66

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