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Choose the correct option.

If pq=28 where p and q are whole numbers then which of the following will be (p2 - q2)?

A32

B83

C783

Dcannot be determined.

Answer: Option (Login/Signup)

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Solution: pq=28

So possible factors of 28 are (1,28) (7,4) (14,2)

Now going for option verification with the factors we get 28^2-1^2 = 783 hence option c is the answer.

STEP-BY-STEP

VIKAS KUMAR SINGH
26 Feb, 2018 1:23 AM

Solution: pq=28

So possible factors of 28 are (1,28) (7,4) (14,2)

Now going for option verification with the factors we get 28^2-1^2 = 783 hence option c is the answer.

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