Question

Difference between the greatest and the least number of seven digits formed by using the digits $7,1,6,2,4,3,0$

• A. $8,325,836$
• B. $9,661,437$
• C. $6,961,347$
• D. $6,619,743$

Answer 1

The correct option is D

$6,619,743$

The greatest number of seven digits formed by using the digits $7,1,6,2,4,3,0$ is $7,643,210$

and the least number of seven digits formed by using the digits $7,1,6,2,4,3,0$ is $1,023,467$

So the difference between these numbers $=7,643,210-1,023,467=6,619,743$