Question

5. If 4 xy 7 is exactly divisible by 3, then the least value of (x + y) is
(a) 1
(b) 4.
(c) 5
(d) 7
6. If x7y5 is exactly divisible by 3, then the least value of (x + y) is
(a) 6
(b) 0
(c) 4
(d) 3
7. If x4y5z is exactly divisible by 9, then the least value of (x + y + z) is
(a) 3
(b) 6
(6) 9
(d) 0
8. IF 1A2B5 is exactly divisible by 9, then the least value of (A + B) is
(a) 0.
(6) 1
(c) 2
(d) 10
9. If the 4-digit number x27y is exactly divisible by 9, then the least value of (x + y) is
(a)0
(b) 3
(c) 6
(e) 9
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Answer 1

Answer:

5a, 6d, 7d, 8b, 9d is the answer