GRE Numeric Entry Sample Questions
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GRE Numeric Entry Sample Questions 1 | GRE Numeric Entry Sample Questions 2 | GRE Numeric Entry Sample Questions 3 | GRE Numeric Entry Sample Questions 4 | GRE Numeric Entry Sample Questions 5 | GRE Numeric Entry Sample Questions 6 | GRE Numeric Entry Sample Questions 7 | GRE Numeric Entry Sample Questions 8 | GRE Numeric Entry Sample Questions 9 | GRE Numeric Entry Sample Questions 10
1. Question :
A’s expenses are 20% less than B’s expenses. How much percent more are B’s expenses than A’s expenses?
Correct Answer:
25%
Explanation:
Let the expenses of A and B be x and y respectively.
x=y-20% of y
x=y-20y/100
x=(100y-20y)/100
x=80y/100
y=100/80x
Required percentage=(y-x)/x*100
=(100x/80-x)/x*100
=(100x-80x)/(80x)*100
=20/80*100
=25%
2. Question :
The breadth of a rectangle becomes one and a half times itself and the length increases by 40%. What is the percentage
change in the area of the rectangle?
Correct Answer:
110%
Explanation:
Let the original length and breadth be l and b respectively
Area=l*b
New length=l+40% of l
=l+40l/100
=140l/100
New breadth=(1+1/2)b
=3b/2
New area=140l/100*3b/2
=140*3lb/200
=21lb/10
Percentage increase=increase/original area*100
=(21lb/10 – lb)/lb*100
=(21-10)/10*100
=1100/10=110%
3. Question :
The volume of a cylindrical pipe is 17600 cc. Its height is 14cm and the external radius is 25cm. Find the thickness
of the cylinder.
Correct Answer:
10 cm
Explanation:
Volume of the cylindrical pipe=pi(R^2-r^2)h, where R and r are the external and internal radii and h is the
height of the cylinder.
pi(R^2-r^2)h=17600
22/7(25^2-r^2)14=17600
22*2*(625-r^2)=17600
r^2=625-400
r^2=225
r=sqrt(225)=15
R=25
r=15
Thickness=R-r
=25-15=10 cm
[x^2=x*x]
GRE Numeric Entry Sample Questions
Click for More GRE Numeric Entry Sample Questions
GRE Numeric Entry Sample Questions 1 | GRE Numeric Entry Sample Questions 2 | GRE Numeric Entry Sample Questions 3 | GRE Numeric Entry Sample Questions 4 | GRE Numeric Entry Sample Questions 5 | GRE Numeric Entry Sample Questions 6 | GRE Numeric Entry Sample Questions 7 | GRE Numeric Entry Sample Questions 8 | GRE Numeric Entry Sample Questions 9 | GRE Numeric Entry Sample Questions 10
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