Question

If 50% of (x-y) = 30% of (x+y), then what % of y is x ?​

Answer 1

Answer:

400%

Step-by-step explanation:

Given :-

50% of (x-y) = 30% of (x+y)

$(x - y) \times \frac{50}{100} = (x + y) \times \frac{30}{100} \\ \\ \frac{1}{2} (x - y) = \frac{3}{10} \times (x + y) \\ \\ \frac{x}{2} - \frac{y}{2} = \frac{3x}{10} + \frac{3y}{10} \\ \\ \frac{x}{2} - \frac{3x}{10} = \frac{3y}{10} + \frac{y}{2} \\ \\ \frac{5x - 3x}{10} = \frac{3y + 5y}{10} \\ \\ 2x = 8y \\ \\ x = 4y \\ \\ x = \frac{400 \times y}{100} \\ \\ x = \frac{400}{100} \times y \\ \\ 400\% \: of \: y \: is \: equal \: to \: x$

hope this will help you