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एक खाता प्रत्येक Rs6 के 12 ऋण को हटा देता है। हस्ताक्षरित परिवर्तन?

A−18
B18
C−72
D72
Answer & Solution
Correct answer: D. 72
दो नकारात्मक कारक एक सकारात्मक उत्पाद देते हैं, और 12 × 6 = 72।
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