• # question_answer 9)                 Find the difference between the greatest and the least numbers that can be written using the digits 6, 2, 7, 4, 3 each only once.

Using the digits 6, 2, 7, 4 and 3, we get Greatest number = 76,432 and least number = 23,467 $\therefore$Difference = Greatest number ? Least number = 76,432 ? 23,467 = 52,965 Note We can form a greatest number with individual digits by arranging them in descending order from right and similarly, we can form a least number by arranging them in ascending order from right.