Question

the average of two numbers is K if one number is equal to M the other number is equal to​

Answer 1

Let the two numbers be m & n

m+n/2=k

hence n = 2k-m

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Answer 2

Answer:

2 number avg = k

therefore sum of those 2 number = 2*k=2k

one number is M

therefore the other number is 2k-M