Question

find the product of the smallest 4 digit number and face value of 4 in the number 547809​

Answer 1

Answer:

The ascending order of the given numbers 7,8,9,5 is:

5<7<8<9

We observe that the smallest digit is 5 and the largest digit is 9.

Therefore, the smallest number formed is 5789.

But it is given that the number formed should have 9 at its hundredth place and 8 at its one's place, therfore, the required number is:

5978 where 8 is at one's place, 7 is at tens place, 9 is at hundredth place and 5 is at thousandth place.

Hence, the smallest 4 digit number formed is 5978.