I am 10years old my sister is 4years,in how many years shall i be twice as old as she will be?
in two years, she'll be six and you'll be 12
2 (s + y) = b + y ... 2(4 + y) = 10 + y
To find out how many years it will take for you to be twice as old as your sister, we need to set up an equation.
Let's assume that after x years, you will be twice as old as your sister.
Your age after x years: 10 + x
Your sister's age after x years: 4 + x
According to the equation, this would be the relationship when you are twice as old as your sister:
10 + x = 2(4 + x)
Let's solve the equation to find the value of x.
Simplifying the equation:
10 + x = 8 + 2x
Now, let's isolate x:
10 - 8 = 2x - x
2 = x
Therefore, it will take 2 years for you to be twice as old as your sister.