If a and b are two positive integers, and HCF(a,b) × LCM(a,b) = 600, which of the following are possible pairs of (a,b)?
A (10, 60), (15, 40), (20, 30)
B (12, 50), (25, 24), (20, 30)
C (15, 40), (20, 30), (24, 25)
D (10, 60), (12, 50), (15, 40)
Solution
Correct Answer: Option C
*সঠিক উত্তর: c) (15, 40), (20, 30), (24, 25)
-HCF(a,b) × LCM(a,b) = a × b = 600
-এই শর্ত পূরণ করে এমন জোড়গুলি হল (15, 40), (20, 30), এবং (24, 25)।