Three numbers are in the ratio 3 : 4 : 5 and their LCM is 2400. Their HCF is: तीन संख्याएँ 3 : 4 : 5 के अनुपात में हैं और उनका LCM 2400 है। उनका HCF क्या है?
A
40 (40)
B
80 (80)
C
120 (120)
D
200 (200)
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Correct Answer 40
Explanation
Let numbers be 3x, 4x, 5x. Since 3, 4, 5 are co-prime, LCM = 3 * 4 * 5 * x = 60x. 60x = 2400 => x = 40. The HCF is x, so HCF = 40.