When a certain number X is divided by 143, the remainder is 42. Which of the following numbers, if added to X, would result in a number divisible by 13?	Answers.
A) 10 B) 21 C) 34 D) 47 E) 55
Now X= 143q + 42 = 11*13*q + 42..so we have to make only 42 div by 13..   42 +10= 
<gadget id="calculator">42 +10</gadget>
<output>52</output>
52 YES   minimum 10 to be added   10
<result>A</result>
When a certain number X is divided by 143, the remainder is 42. Which of the following numbers, if added to X, would result in a number divisible by 13?