Question
Three numbers are in the ratio 4 : 9 : 13 and their LCM
is 2340. Their HCF is:Solution
Let, the HCF of the numbers = H So, the three numbers are 4H, 9H, and 13H. According to the question, β LCM (4H, 9H, 13H) = 2340 β (4 Γ 9 Γ 13) Γ H = 2340 β 468 Γ H = 2340 β H = 2340/468 β H = 5 β΄ Their HCF is 5.
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