Question 15

A two digit is such that when it is divided by the largest single digit prime number leaves remainder 4.If the difference of the two digit is 4 then the number is

Solution

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If the difference between the digits has to be 4, only 73 and 95 qualify. Of these 73 leaves a remainder of 3 and not 4 when divided by 7. So, the answer is 95. 

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