?
Sum of two numbers is thrice their difference. Their ratio is :
Answer & Solution
Correct Answer:
Option
B
Let the numbers = a, b
According to the question,
a + b = 3 (a - b)
$$\frac{a + b}{a - b}$$ = $$\frac{3}{1}$$
By componendo and dividendo
$$\frac{2a}{2b}$$ = $$\frac{4}{2}$$
$$\frac{a}{b}$$ = $$\frac{2}{1}$$
a : b = 2 : 1
According to the question,
a + b = 3 (a - b)
$$\frac{a + b}{a - b}$$ = $$\frac{3}{1}$$
By componendo and dividendo
$$\frac{2a}{2b}$$ = $$\frac{4}{2}$$
$$\frac{a}{b}$$ = $$\frac{2}{1}$$
a : b = 2 : 1
Join the Discussion
Login to post a comment or share your explanation.
Login