Trick 2:
Step1:Think of a 2 digit number.
Step2:Multiply it with x3 x7x 13x 37.
Ex: Number: 45,
Answer: 454545
BY : SUMIT BHADRA
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THIS BLOG CONTAINS IMPORTANT QUESTIONS DERIVATIONS EXTRA QUESTIONS NCERT SOLUTIONS OF SUBJECTS OF IX X CBSE XI SECTION WILL BE OUT SOOON
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