Question

Rich chooses a 4-digit positive integer. He erases one of the digits of this integer. The
remaining digits, in their original order, form a 3-digit positive integer. When Rich
adds this 3-digit integer to the original 4-digit integer, the result is 6031. What is the
sum of the digits of the original 4-digit integer?
(A) 18 (B) 20
(C) 22 (D) 19 (E) 21​

Answer 1

Answer:

C

Step-by-step explanation: