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A number when divided by a divisor left remainder 23. When twice the number was divided by the same divisor, remainder was 11. Find the divisor. In the explanation.it is given 2*23-11=35. but here in the question,it is said,When twice the number was divided by the same divisor, remainder was 11,and not the twice of the previous remainder. please help me out,i am not clear with the explanation.

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Let's say the no is x, divisor is p First condition x= np + 23 2nd Condition 2x=mp + 11 Mulitply (1) by 2 and subtract (m-2n)p= 35 P is integer and m-2n is integer and also p>23 Considering all conditions, we get p= 35 Note: If you double the number, remainder should be doubled ( if 2 times of remainder is more than divisor)..ie. (2 x 23=46), but given is 11. So divisor is less than 46 and difference ( 2x23-11) should be divisible by Divisor.