In the number 235A 11B, replace A and B by digits so that A < B and the number is divided exactly by 3 and 5.
Answers
A = 1 or 4 & B = 5 if 235A 11B is divisible by 3 & 5
Step-by-step explanation:
In the number 235A 11B, replace A and B by digits so that A < B and the number is divided exactly by 3 and 5.
Number will be divisible by 5 if it ends with 0 or 5
so B can be 0 or 5
but A < B
=> B ≠ 0
hence B = 5
now A < 5
so number becomes
235A115
Now a number is diisibly by 3 if sum of its digits id divisble by 3
2 + 3 + 5 + A + 1 + 1 + 5
= 17 + A
A = 1 or 4 as 18 & 21 are divisible by 3
Hence possible numbers
2351115
2354115
A = 1 or 4 B = 5
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