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कोणता पूर्णांक रिक्त जागा भरतो: ___ + (−18) = −31?

A49
B13
C−49
D−13
Answer & Solution
Correct answer: D. −13
18 ला −31 जोडल्याने गहाळ पूर्णांक −13 मिळतो.
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