Question

Without repetition write all possible
(i) 2-digit numbers and (ii) 3-digit numbers
that can be formed by using the digits
3, 9.and 4. Find the product of the smallest
3-digit number and the greatest 3-digit
number obtained.​

Answer 1

possible 2 Digit numbers :-

39 , 94 , 34, 43 , 49 , 93

possible 3 digit numbers:-

439,394,934,943,349,493

greatest 3 digit no. obtained = 943

smallest 3 digit no. obtained = 349

product = 349 × 943 = 329107.