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  1. If 3x = 5y = 4z, then x : y : z is equal to
    1. 9 : 12 : 16
    2. 20 : 12 : 15
    3. 15 : 10 : 9
    4. 8 : 5 : 3
Correct Option: B

3x = 5y = 4z
LCM of 3, 5 and 4 = 60

∴ 
3x
 =
5y
=
4z
606060

⇒ 
⇒ 
x
 =
y
=
z
201215

∴  x : y : z = 20 : 12 : 15


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