Question

When 20% of a number is added to another number the another number increases by 50%. What is the ratio between the first number and the second number?

Answer 1

Answer:

5:2

Step-by-step explanation:

1 st number = x

2nd number = y

0.2 x = 0.5 y

2 x = 5 y

x:y :: 5:2

Answer 2

The ratio between the first number and the second number is 5:2

Step-by-step explanation:

Let the first number be x and second number be y

20% of a number is added to another number  = 0.2x+y

When 20% of a number is added to another number the another number increases by 50%.

0.2x+y-y = 0.5y

$\frac{x}[y}=\frac{0.5}{0.2}\\\frac{x}{y} =\frac{5}{2}$

Hence the ratio between the first number and the second number is 5:2

#Learn more:

When 35%of a number is added to another number , the second number increases by 20%. what is the ratio between the second number and the first number ?

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