A -15
B 士15-
C 14
D 15
Correct Answer: Option D
m/3+3=2m/15+6
বা, m/3-2m/15=6-3
বা, (5m-2m)/15=3
বা, 3m/15=3
বা, 3m=45
অতএব, m=45/15
=15
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