A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4-digit number 13b7, which is divisible by 11. Then, (a + b) = ?
posted Jul 7, 2013, 4:42 AM
A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4-digit number 13b7, which is divisible by 11. Then,
(a + b) = ?
A. 10 B. 11 C. 12 D. 15 |
