The ratio between two numbers is 3: 4. If their L.C.M., is 180. Find the numbers. Let the required numbers be 3x and 4x.The L.C.M., of 3x and 4x = 12xThen 12x = 180⇒ x = 15HEnce, the required numbers are3x = 3 x 15 = 45 4x = 4 x 15 = 60. Concept: Concept of Ratio Is there an error in this question or solution?
Two numbers are in the ratio $$3:4$$. If their LCM is $$180$$, find the numbers. Let the two numbers be $$3x$$ and $$4x$$ and HCF be $$x$$ We know that Product of two number=Product of their LCM and HCF So, $$4x\times3x=180\times x$$ $$12x^2=180x$$ $$12x=180$$ $$x=15$$ $$3x=3\times15=45$$ $$4x=4\times15=60$$ Therefore the numbers are $$45$$ and $$60$$.
7. The numerator of a fraction is multiple of two numbers. One of the numbers is greater than the other by 2. The greater number is smaller than the denominator by 4. If the denominator 7+C (C > -7) is a constant, then the minimum value of the fraction is
D. -5
Let the first number be x.then, second number would be (x+2).According to the question,x + 2 + 4 = 7 + c ⟹ x + 6 = 7 + c⟹ x = 1 + c∴ Fraction For the minimum value, - 3 < c < -1∴ c = -2∴ Required value of fraction = -1/5 |