The average of two numbers is XY.If one number is equal to X ,the other number is equal to_________?

Maths MCQs, MCQs Preparation, Mocks, Selected MCQs /

A. X
B. 2Y
C. XY-X
D. 2 XY -X

D. 2 XY -X

x and y are two numbers.

(x+y)/2=xy (average of two numbers)

If one number is equal to x, then

other number will be,

(x+y)/2=xy

x+y=2xy

y=2xy+x (Answer)

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