when i was 18 Year old ,My sister was Half my age,now i Am 82 Year old .how old is my sister now.

were 18 and 9 so I am 9 years older than sister

82 - 9 = ?

When your age is 18 years old that time your sister's age is half of your age that means 18/2 = 9 years

So difference between you and your sister's age is 18-9 = 9 years

so your sister is 9 year younger than you.

So when your age will become 82 years that day you sister's age will be 82-9 = 73years.

I hope this answer help

To determine how old your sister is now, it's important to analyze the information given.

When you were 18 years old, your sister was "half your age." This means that the age difference between you and your sister is 18 - (1/2)*18 = 9 years. So, when you were 18, your sister was 9 years old.

Now you are 82 years old. The age difference between you and your sister still remains the same: 9 years. Therefore, to calculate your sister's current age, you simply need to subtract 9 from your age. So, your sister's current age is 82 - 9 = 73 years old.

73