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নয়টি আইটেমের প্রতিটিতে Rs7 ক্ষতি হয়। মোট স্বাক্ষরিত ক্ষতি?

A63
B−16
C−63
D16
Answer & Solution
Correct answer: C. −63
চিহ্ন ভিন্ন, তাই গুণফল 7 × 9 = 63 মাত্রার সাথে ঋণাত্মক।
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