if mary's age is x years.what will be the present age of mary's niece if her niece is 3 years less than one third of mary's age 5 years ago?
mary's age 5 years ago is x-5
1/3 of that is (x-5)/3
3 less than that is (x-5)/3 - 3
Now, that may not be the answer, since it's difficult to parse just who's how old when, with your unusual verb tenses.
Let's break down the information given step-by-step:
1. Mary's age is x years.
2. 5 years ago, Mary was x - 5 years old.
3. One third of Mary's age 5 years ago would be (1/3) * (x - 5) years old.
4. Mary's niece is 3 years less than one third of Mary's age 5 years ago. So, her niece's age would be (1/3) * (x - 5) - 3 years old.
Therefore, the present age of Mary's niece would be (1/3) * (x - 5) - 3 years old.
To find out the present age of Mary's niece, we need to follow these steps:
1. Find Mary's age 5 years ago.
Since Mary's current age is x years, her age 5 years ago would be (x - 5) years.
2. Calculate one third of Mary's age 5 years ago.
One third of Mary's age 5 years ago can be found by dividing her age 5 years ago by 3: (x - 5) / 3 years.
3. Subtract 3 years from one third of Mary's age 5 years ago to get the niece's age.
Mary's niece is reported to be 3 years less than one third of Mary's age 5 years ago, so the niece's age would be [(x - 5) / 3] - 3 years.
By following these steps, you can calculate the present age of Mary's niece given Mary's age (x years).