Question

the sum of the digit number is 12.if the digits are reversed the number is increased by 495 but reversing only of the ten's and unit digits increases the number by 36.the number is...
a) 327
b) 372
c) 237
d) 273

Answer 1

let the digits be x,y,z

then x+y+z=12...............(i)

zyx=xyz+495.................(ii)

solving i and ii

the answer is 237