If a – b = 1 and a 3 – b 3 = 61, then the value of ab will be? – OfficerPath

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If a - b = 1 and a 3 - b 3 = 61, then the value of ab will be?

Subject: MathematicsTopic: Algebra

A

-20

B

20

C

30

D

60

Correct Answer: B

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