Question
Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is:
Answer: Option A
 - Let the numbers be 3x, 4x and 5x.
Then, their L.C.M. = 60x.
So, 60x = 2400 or x = 40.
The numbers are (3 x 40), (4 x 40) and (5 x 40).
Hence, required H.C.F. = 40.
Was this answer helpful ?
 - Let the numbers be 3x, 4x and 5x.
Then, their L.C.M. = 60x.
So, 60x = 2400 or x = 40.
The numbers are (3 x 40), (4 x 40) and (5 x 40).
Hence, required H.C.F. = 40.
Was this answer helpful ?
More Questions on This Topic :
Question 1. The G.C.D. of 1.08, 0.36 and 0.9 is: ....
Question 8. The H.C.F. of 1.75, 5.6 and 7 is: ....
Submit Solution