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05 Jul 2018, 00:52
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
91% (01:21) correct
9%
(02:00)
wrong
based on 94
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[GMAT math practice question]
The relationship between the weight W in pounds and the height \(H\) in inches of an object is given by the equation, \(W = 110 +5*(H-60)\). If the height is increased by \(10\) inches, by how much does the weight increase?
A. 30 pounds
B. 40 pounds
C. 50 pounds
D. 60 pounds
E. 70 pounds
The relationship between the weight W in pounds and the height \(H\) in inches of an object is given by the equation, \(W = 110 +5*(H-60)\). If the height is increased by \(10\) inches, by how much does the weight increase?
A. 30 pounds
B. 40 pounds
C. 50 pounds
D. 60 pounds
E. 70 pounds
05 Jul 2018, 01:09
Kudos
Bookmarks
I picked some quick numbers
Let's say H=60 then W=110+5(60-60)=110
Now increase H by 10 inches: H=70 W=110+5(70-60)=160
160-110=50
In My Opinion
Ans: C
Let's say H=60 then W=110+5(60-60)=110
Now increase H by 10 inches: H=70 W=110+5(70-60)=160
160-110=50
In My Opinion
Ans: C
05 Jul 2018, 01:14
Kudos
Bookmarks
MathRevolution
[GMAT math practice question]
The relationship between the weight W in pounds and the height \(H\) in inches of an object is given by the equation, \(W = 110 +5*(H-60)\). If the height is increased by \(10\) inches, by how much does the weight increase?
A. 30 pounds
B. 40 pounds
C. 50 pounds
D. 60 pounds
E. 70 pounds
The relationship between the weight W in pounds and the height \(H\) in inches of an object is given by the equation, \(W = 110 +5*(H-60)\). If the height is increased by \(10\) inches, by how much does the weight increase?
A. 30 pounds
B. 40 pounds
C. 50 pounds
D. 60 pounds
E. 70 pounds
The only difference when H becomes H+10 is:-
5*(H-60)-5(H+10-60)=300-250=50 (Since 110 is constant)
Ans. C
