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653×749=?
[PNB(PO), 2010]
489907
488348
488444
490403
None of these
Explanation
In this above question,
Here, ?= 653×749 = (701−48)×(701 + 48= (701)2−(48)2 [∵a2−b2=(a+b)(a−b)] = 491401−2304=489097
Hence, option E is correct.
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