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

4 answers

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.. ?
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.