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Numerical Ability
LCM and HCF
if the ratio of two number is 3:4 and LCM of the number is 180 then what is the number.
Read Solution (Total 12)
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- product of two no = lcm *hcf
3x*4x=180*x
x=15 - 9 years agoHelpfull: Yes(27) No(8)
- let two number is = 3x and 4x
so LCM of 3x and 4x will be = 12x
and 12 x= 180
x=15
so number will be 3x= 45
and 4x=60 - 9 years agoHelpfull: Yes(25) No(2)
- LCM is Least Comman Multiple then ...
180X=3x*4X
Solve this..
X=45& 60 - 9 years agoHelpfull: Yes(3) No(1)
- no. be 3x and 4x
lcm=3x*4x=180
12x=180
x=15
so,no. are 45 and 60 - 9 years agoHelpfull: Yes(3) No(1)
- As given ratio of two numbers is 3:4 and LCM = 180 then solution is 45
As the ratio is 3:4 take minimum numbers as 9 & 12 so there LCM is 36 ; the number should be 5 times of the number as here it is given 180 = 5 * 36 so this gives 45 for 9 & 60 for 12.
so 45 is the correct answer. - 9 years agoHelpfull: Yes(1) No(1)
- 45 and 60
- 9 years agoHelpfull: Yes(1) No(0)
- Lcm = 180 , Ratio of Numbers 3 & 4
So That Numbers = 180/3 & 180/4
Ans 60 & 45 - 9 years agoHelpfull: Yes(1) No(1)
- let two number is = 3x and 4x
so LCM of 3x and 4x will be = 12x
and 12 x= 180
x=15
thus number will be 3x= 45
and 4x=60. - 9 years agoHelpfull: Yes(0) No(1)
- by formula hcf*lcm=product of two numbers
180*x=3x*4x
x=15
- 8 years agoHelpfull: Yes(0) No(0)
- 3x*4x=180*x
x=15
first number=3*15=45
second number=4*15=60 - 7 years agoHelpfull: Yes(0) No(0)
- let the nunber be 3x and 4x. Then L.C.M = 12x
So, 12x=180 or x=15
Thus the no. are 45 and 60 . - 6 years agoHelpfull: Yes(0) No(0)
- lcm(3X,4X)=12X
12X=180
X=15
so numbers are =3*15,4*15=(45,60) - 5 years agoHelpfull: Yes(0) No(0)
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