3.
तीन नंबर 3: 4: 5 के अनुपात में हैं और उनके एल.सी.एम. 2400 है। उनका एच.सी.एफ. है
Three numbers are in the ratio of 3: 4: 5 and their L.C.M. is 2400. Their H.C.F. it
(a) 120
(b) 60
(c) 80
(d) 40
तीन नंबर 3: 4: 5 के अनुपात में हैं और उनके एल.सी.एम. 2400 है। उनका एच.सी.एफ. है
Three numbers are in the ratio of 3: 4: 5 and their L.C.M. is 2400. Their H.C.F. it
(a) 120
(b) 60
(c) 80
(d) 40
Answers & Comments
answer. d. 40
explanation:- Let's us consider the three number be 3x,4x and 5x
The L.C.M of the three numbers be = 60x
60x = 2400
x = 2400/60
x = 40
then the number must be :
3x = 3 × 40 = 120
4x = 4 × 40 = 160
5x = 5 × 40 = 200
since 40 is common
Therefore the HCF of three numbers be 40.
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