2101, 2110; 2003, 2030, 2300, 2012, 2021, 2102, 2120, 2201, 2210, 2111
The digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 can be arranged into an addition sum to add up to almost any total, except that nobody has yet found a way to add up to 1984. However 9 digits can equal 1984 by an addition sum. Which digit is omitted?
If at the end of year 2002, Ram was half old as his grandpa. Sum of the years in which they were born is 3854. What would be the age of Ram at the end of year 2003.
2 + 47 = 49, 2 x47 = 94 so the digits of the answer are the same but in reverse when you add or multiply 2 and 47. Can you find other pairs which have answers with digits reversed when added and multiplied?