Question

If
397 is coded as 210191,
459 is coded as 360881 and
123 is coded as 030260

Then what is the code for 789?

Answer 1

Solution

Lets denote original number as abc

The coded number could be broken into 3 part of 2 digits each

First two digits of coded number from left is derived as = a*c =7*9 = 63

Middle two digits are derived as = a+c-b = 7+9-8 = 08

Last two digits are derived as = Reverse of (a+b+c) = Reverse of(7+8+9) = Reverse of (24) = 42

Hence 630842

Answer 2

consider the given number 789 as xyz

solution :-

first two digits from the extreme left

x*z=7*9=63

middle two digits :-

x+z-y=7+9-8=08

last two digits right most:-

inverse (x+y+z)= inverse(7+8+9)=42

coded output =630842