Possibility of two digit no whose sum is 10
19,28,37,46,55,64,73,82,91
Now add 18 to each no mentioned above
37,46,55,64,73,82,91,100,109
See after third comma. 46 and 64. Reverse of 46 is 64. That 64 is 18 more than 46
So 46 is the original
46.
Find a four digit number whose digits will be reversed when multiplied by nine?
192
Possibility of two digit no whose sum is 17 89 and 98 Reverse of 89 is 98. 98 is 9 less than the original no 89. 89 is original no
"If the units digit and the hundreds digit of the number 513 were reversed..." 315 'find the sum of the original number and the new number." 513+315=828
A) If a number has two digits, then the sum of its digits is less than the value of the original two-digit number.
17
The number is 36
47 Impossible problem!
Find a four digit number whose digits will be reversed when multiplied by nine?
192
Possibility of two digit no whose sum is 17 89 and 98 Reverse of 89 is 98. 98 is 9 less than the original no 89. 89 is original no
If the number with the digits reversed can have a leading 0 so that it is a 1-digit number, then 16. Otherwise 13.
"If the units digit and the hundreds digit of the number 513 were reversed..." 315 'find the sum of the original number and the new number." 513+315=828
An eight digit number with one zero cannot remain the same when its digits are reversed. It must have an even number of 0s.
45
A) If a number has two digits, then the sum of its digits is less than the value of the original two-digit number.
100000 2847239582