alleryஒரு கணக்கு 12 கடன்கள் Rs6 ஒவ்வொன்றையும் நீக்குகிறது. கையெழுத்திட்ட மாற்றமா?
A−18
B18
C−72
D72
Answer & Solution
Correct answer: D. 72
இரண்டு எதிர்மறை காரணிகள் நேர்மறை விளைபொருளைக் கொடுக்கின்றன, மேலும் 12 × 6 = 72.
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