Question

The difference in the place values of $8$ between the greatest and the smallest $4$-digit numbers formed by using the digits $3,8,0,5$ each only once is

• A. $8998$
• B. $6992$
• C. $7992$
• D. $5998$

Answer 1

Answer: (C)

$7992$

Greatest four digit no formed using digits $3,8,0,5=8530$

Smallest four digit no formed using digits $3,8,0,5=3058$

Place Value of digit 8 in Greatest Four digit no $=8000$

Place value of digit 8 in smallest four digit no $=8$

Therefore, required difference $=8000-8=7992$