A certain number X when divided by 243 leaves a remainder of 98. Which of the following can be subtracted from X to make X divisible by 81?
Choose the correct choice from the following options:
A) 17 B) 27 C) 37 D) 47 E) 57
X=243y+98   so X/81 = 243y/81 + 98/81   since 243 is divisible by 81 the remainder of X/81 is remainder of 98/81 that is 17   Therefore subtracting 17 from X will make it divisible by 81   hence 17 is the answer
<result>A</result>
A certain number X when divided by 243 leaves a remainder of 98. Which of the following can be subtracted from X to make X divisible by 81?