What ought to be added to each of the four numbers 6, 14, 18, 38 to make them corresponding?
Answer with explanationAnswer: Option A
Let the number to be added be x. Then,
=> (6+x) (38+x)= (14+ x) (18 +x)
=> 228 +44x+x2 = 252+32x+x2
=> x=2 .
∴ the required number is 2.
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