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Question

By what number should we multiply 43  so that the product may be equal to 64?


  1. 45

  2. 212

  3. 26

  4. 210


Solution

The correct option is B

212


Let, the required number be x

x×43=64
x×143=64        (a(m) = 1am)
x=64×43=26×(22)3=26×26

=212    (am×an=(a)m+n)

value of x is 212

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