If the number (100×e+10×g+f) is reversed and the difference of reversed and original number is divided by 33, then the quotient and remainder are:
3 (e - f); 0
100e+10g+f=egf
Reversing the digits
fge=100f+10g+e
Taking the difference of egf−fge
=(100e+10g+f)−(100f+10g+e)
=100e+10g+f−100f−10g−e
=99e−99f=99(e−f)
When divided by 33:
Dividend=Divisor×Quotient+Remainder
99(e−f)=33×3(e−f)+0
Remainder=0
Quotient=3(e−f)