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Aptitude | Simplification and Approximation | Question 15

  • Last Updated : 28 Jun, 2021
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If p – q = 6 and p2 + q2 = 116, what is the value of pq?
(A) 20
(B) 60
(C) 40
(D) 10


Answer: (C)

Explanation: p2 + q2 -2pq = 36

=> pq = 40

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