If from a two-digit number, we subtract the number formed by
reversing its digits then the result so obtained is a perfect cube. How
many such numbers are possible? Write all of them
A three-digit number 2 a 3 is added to the number 326 to give a three-digit number 5b9 which is divisible by 9. Find the value of b –a.
A five-digit number AABAA is divisible by 33. Write all the numbers of this form.
If 1AB + CCA = 697 and there is no carry–over in addition, find the value of A + B + C.
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