A boy has 120 balls of which some are white and the remaining are black. If the percentage of white balls is 45%, find 1 the number of black balls he has.

A boy has 120 balls of which some are white and the remaining are blac

1.	A boy has 120 balls of which some are white and the remaining are black. If the percentage of white balls is 45%, find 1 the number of black balls he has.
A.	56
B.	66
C.	64
D.	54
Answer» C. 64

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A boy has 120 balls of which some are white and the remaining are black. If the percentage of white balls is 45%, find 1 the number of black balls he has.

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