Basic HTML Version
Q
uantitative
R
easoning &
P
roblem
S
olving
188
© 2014 Pacific Crest
Step
Watch it Work!
8.
Integrate the
sub-problems
1)
$120000 $104000 $16000
8 years
8 years
r
−
=
=
=
$ 2000
yr
2) In 2012, she had owned the home for 10 years.
120000 2000 10
120000 20000
v b r y
v
v
v
= − ×
=
− ×
=
−
=
100000
9.
Present the
solution
Her home was worth $100,000 in the year 2012.
10. Validate the
solution
Check the value of her home at the beginning when
y
= 0 and at the end when
y
= 8:
120000 2000 0 120000
120000 2000 8 120000 160000 104000
v
v
=
− × =
=
− × =
−
=
Check the computation of the value of the home.
100000 + 20000 = 120000
C
ritical Thinking Questions
Developing your understanding
1. When inventorying information, what are five potential types of information in the problem
description?
2. How do you determine that you have completely inventoried a problem description?