railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Number System Divisibility and Remainder
A four digit number is AB40 is divisible by 9 where A and B satisfying A + B < 19, then find the possible number of pairs of (A, B).
1
10
2
8
3
11
4
9