Question

দুটি মৌলিক সংখ্যা X এবং Y (x > y} ল.সা.গু 15, 3y-x এর মান কত? -
a) 2 b) 4 c) 6
d) ৪
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Answer 1

Answer:

since two numbers are prime and their LCM is 15

numbers will be 5 and 3

since x is greater than y

x = 5 and y = 3

putting these values in 3y - x = 3×3 - 5 = 9 - 5 = 4