Two numbers are in ratio 4 : 5 and their LCM is 180. The smaller number is
A. 9
B. 15
C. 36
D. 45
Answer: Option C
Solution(By Examveda Team)
Let two numbers be 4x and 5x Their LCM = 180 and HCF = xNow, 1st number × 2nd number = LCM × HCF Or, 4x × 5x = 180 × x Or, 20x = 180 Or, x = 9 Then, the smaller number = 4 × 9 = 36
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Related Questions on Ratio
If a : b : c = 3 : 4 : 7, then the ratio (a + b + c) : c is equal to
A. 2 : 1
B. 14 : 3
C. 7 : 2
D. 1 : 2
If $$\frac{2}{3}$$ of A=75% of B = 0.6 of C, then A : B : C is
A. 2 : 3 : 3
B. 3 : 4 : 5
C. 4 : 5 : 6
D. 9 : 8 : 10
4x45=180 and 5x36=180
here 36 is the smaller number when compring the LCM of both
180...
Smaller no is 36 and larger no is 5*9=45
lcm of those is 360 not 180 . Can someone explain me ?