• Home
  • Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is:
Question 1:
Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400.
Their H.C.F. is:
A. 40
Feedback Let the numbers be 3x, 4x and 5x.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.
B. 80
C. 120
D. 200

These questions are from this test. Would you like to take a practice test?

Practice Problems on LCM and HCF Online Test 3 | Englishfreetest.com