in the multiplication ab*ba=57b, a and b represent different digits, if ab
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Answer:
ab = 14
Step-by-step explanation:
The above problem requires the method of hit and trial. The only other method to reach the same answer is through a series of equations.
Through hit and trial, we set an upper limit and lower limit to possible answers. For instance, numbers in the 30s cannot satisfactorily yield any result and nor will the 20s. Going any further only decreases the chances of finding ab. As a result, we restrict ourselves to numbers between 10 and 20.
The only number satisfying our requirements are 14 x 41 = 574. To correctly supply the answer, we take ab = 14.
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