Question 1195503: Philip is twice as old as Lori. In y years he will be 1.5 times as old as Lori. Lori's age at present may be correctly expressed as:
y/4, 2y/3, y, 3y/2, 3y
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617)   (Show Source):
Answer by ikleyn(52781)  (Show Source):
You can put this solution on YOUR website! .
Philip is twice as old as Lori. In y years he will be 1.5 times as old as Lori.
Lori's age at present may be correctly expressed as:
y/4, 2y/3, y, 3y/2, 3y.
~~~~~~~~~~~~~~~~
If Lori's current age is x, then Philip's current age is 2x, according to the problem.
Next, in y years, Philip's age will be (2x+y); Lori's age will be (x+y) years.
The problem says that
2x + y = 1.5*(x+y).
It gives
2x + y = 1.5x + 1.5y
2x - 1.5x = 1.5y - y
0.5x = 0.5y
x = y
+----------------------------------------------------+
| Thus Lori's current age (x) is y years; |
| so, Lori's current age can be expressed as y |
| (the third option of the given answers list). |
+----------------------------------------------------+
Solved.
---------------
It is good problem to check whether you do understand in full
what you write, when you solve the problem.
|
|
|
