Question

Sum of two numbers is thrice their difference. Their ratio is

A) 1:2 B) 2:1 C) 3:1 D) 1:3

Answer 1

Answer:

B) 2:1

Step-by-step explanation:

let the two no. be x and y.

according to the question,

x + y =3(x-y)

x+y = 3x-3y

2x= 4y

x= 2y

therefore, x:y = 2:1

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Answer 2

Step-by-step explanation:

let the number be x and y

x + y = 3(x-y)

$\frac{x + y}{x - y} = \frac{3}{1}$

$\frac{ \cancel2x}{ \cancel2y} = \cancel\frac{ 4}{2} = \frac{2}{1}$

Hence the ratio is 2:1