Areas Questions and Answers For Competitive Exams

Areas Questions and Answers For Competitive Exams:We are going to discuss a very interesting and important topic. The Areas problems topic is very important to get  a high score in competitive exams. The Area is an important part in Data Interpretation. By the end of it, we shall be familiar with the basics.It uses for the calculation of Areas and their practical Examples

Areas Questions and Answers For Competitive Exams

1).One side of the rectangular field is 10 meter and one of its diagonals is 12 meter. Then find the area of the field.
1.6.63
2.66.3
3.0.63
4.6.063
2. The ratio between the length and the breadth of a rectangular park is 3 : 2. If a woman cycling along the boundary of the park at the speed of 12 km/hr completes one round in 8 minutes, then the area of the park (in sq. m) is:
A)152600
B)153500
C)153600
D)1535800
3.The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:
A)32%
B)34%
C)42%
D)44%
4.The area of a rectangle is 460 square meters. If the length is 15% more than the breadth, what is the breadth of the rectangular field ?
A)18 meter
B)20 meter
C)22 meter
D)25 meter
5.The Diagonals of two squares are in the ratio of 2:5. find the ratio of their areas.
A)4:25
B)4:15
C)3:25
D)3:15

 

6.A 5 cubic centimeter cube is painted on all its side. If it is sliced into 1 cubic centimeter cubes, how many 1 cubic centimeter cubes will have exactly one of their sides painted?
A)9
B)61
C)98
D)54

 

7.The circumference of the front wheel of a cart is 30 ft long and that of the back wheel is 36 ft long. What is the distance traveled by the cart, when the front wheel has done five more revolutions than the rear wheel?

A)20ft

B)25ft
C)750ft
D)900 ft
8.If the sides of a triangle measure 72, 75 and 21, what is the measure of its in radius?
a.37.5
b.24
c.9
d.15
9.A 5 cm cube is cut into as many 1 cm cubes as possible. What is the ratio of the surface area of the larger cube to that of the sum of the surface areas of the smaller cubes?
a).1 : 6
b).1:5
c)1:25
d)1:125

 

10.If each interior angle of a regular polygon is 150 degrees, then it is a/an
a.Octagon
b.Decagon
c.Dodecagon
d.Tetrahedron

 

11.If the diagonal and the area of a rectangle are 25 m and 168 m2, what is the length of the rectangle?
a)17 m
b)31m
c)12m
d)24

 

12.If each side of a square is increased by 25%, find the percentage change in its area?
a)65.25
b)56.25
c)65
d)56
13.If the radius of a circle is decreased by 50%, find the percentage decrease in its area ?
a)55%
b)65%
c)75%
d)85%
14.A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?
a)30
b)40
c)50
d)60
15.The diagonal of a rectangle is  cm and its area is 20 sq. cm. The perimeter of the rectangle must be
a)18
b)28
c)38
d)48