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Question

In a quadratic equation Px2 + qx + r = 0, where P, q and r are distinct natural numbers less than 6. If quadratic equation has real and distinct roots, then total number of possible pairs of (P, q, r) is

किसी द्विघात समीकरण Px2 + qx + r = 0 में, जहाँ P, q तथा r भिन्न प्राकृत संख्याएं हैं, जो 6 से कम हैं यदि द्विघात समीकरण के मूल वास्तविक एवं भिन्न हैं, तब (P, q, r) के संभावित युग्मों की कुल संख्या है

A
12
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B
14
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C
13
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D
15
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Solution

The correct option is B 14
Solution

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