a woman is 21 and is half the age of her mother, how old the mom be if the woman is 42?

Please proofread. The woman can't be both 21 and 42.

Woman is 21 and is half the age of her mother, How old is the mother if the woman is 42?

First of all, you need to know how old the mother is in the first part of the equation. It says the woman is HALF of her age, so, you would multiply 21 * 2 which gives you.. ?

To determine the age of the mom when the woman is 42, we first need to find the current age of the mom.

We know that the woman is currently 21 years old and is half the age of her mother. So, let's calculate the current age of the mother.

Step 1: Divide the woman's current age by 2 to find out how old she was when she was born.
21 / 2 = 10.5

Step 2: Subtract the result from the woman's current age to find the age difference between the woman and her mother.
21 - 10.5 = 10.5

Step 3: Add the age difference to the woman's current age to find the current age of the mother.
21 + 10.5 = 31.5

Therefore, the mother is currently 31.5 years old.

To determine how old the mom will be when the woman is 42 years old, we can use the age difference calculated above.

Step 4: Subtract the woman's current age from 42 to find the age difference between now and when the woman turns 42.
42 - 21 = 21

Step 5: Add the age difference to the current age of the mother to find her age when the woman turns 42.
31.5 + 21 = 52.5

Therefore, the mom will be 52.5 years old when the woman is 42 years old.

The mother would be 42. Now, if the woman was 42, we apply the same kind of equation. 42 * 2 since she is still half of her mother's age. Her mother would be 84.