Question

Form the greatest and the smallest 4-digit numbers using the given digits, without repetition:​ 6, 1, 4 and 9

Answer 1

Finding the smallest and largest 4- digit number using the given digits ​

Given digits = 6, 1, 4 and 9 ​
Since 9 > 6 > 4 > 1​

Thus, the greatest 4-digit number = 9641​

And the smallest 4-digit number = 1469​

Hence, 9641 is the greatest 4-digit number & 1469 is the smallest 4-digit number.​