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Check what the result would have been if Sundaram had chosen the numbers shown below.

    3. 64

Answers (1)

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64 + 46 = 110 = 11*10= a multiple of 11

this can be explained by 

(10a + b) + (10b + a) = 11a + 11b = 11 (a + b)

here a = 6 and b = 4

Posted by

Pankaj Sanodiya

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