Question

if 18, x, y, -3 are in AP then X + Y​

Answer 1

Answer: 15

Step-by-step explanation:

Given 18,x,y,-3 are in AP

=>their common difference(D) is same

i.e, x-18= -3-y

=>x+y= -3+18

=>x+y=15

Therefore x+y= 15

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Answer 2

Step-by-step explanation:

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