Two numbers are in the ratio 3:4. Their LCM is 84. The greater number is ?
A. 21
B. 24
C. 28
D. 84
Answer: Option C
Solution (By Examveda Team)
Let numbers are = 3x & 4x respectivelyLCM = 84 (given)
∴ LCM number = common factor (other factors)
x × 3 × 4 = 12x
⇒ 12x = 84
⇒ x = 7
∴ Number are = 3x = 7 × 3 = 21
4x = 7 × 4 = 28
greater number is 28
Related Questions on Problems on H.C.F and L.C.M

Join The Discussion