A rectangle has 15 cm as its length and 159 cm2 as its area. Its area is increased to 1 1/3 times the original area by increasing only its length its new perimeter is:_________?
A. 50 cm
B. 60 cm
C. 70 cm
D. 80 cm
Basic Arithmetic
The length and breadth of a square are increased by 40% and 30% respectively. The area of the resulting rectangle exceeds the area of the square by:________?
A. 42%
B. 62%
C. 82%
D. none of these
The length of a hall is (4/3) times its breadth. If the area of the hall be 300 square meters the difference between the length and breadth is__________?
A. 15m
B. 4m
C. 3m
D. None of these
The area of a rectangle is thrice that of a square. The length of the rectangle is 40 cm and the breadth of the rectangle is (3/2) times of the square. The side of the square in cm is__________?
A. 15
B. 20
C. 30
D. 60
The length of a rectangle is increased by 60 %. By what percent would the width have to be decreased to maintain the same area?
A. 37 ½ %
B. 60 %
C. 75 %
D. 120%
If the ratio of the areas of two squares is 9:1 ratio of their perimeters is_________?
A. 9:1
B. 3:1
C. 3:4
D. 1:3
The Length of a plot is four times is breadth. A playground measuring 1200 square meters occupies a third of the total area of the plot. What is the length of the plot in meters?
A. 20
B. 30
C. 60
D. None of these
If the side of a square is increased by 25 % then how much percent does it’s area get increased:
A. 125
B. 156.25
C. 50
D. 56.25
If the length of diagonal AC of a square ABCD is 5.2 cm then area of the square ABCD is_________?
A. 15.12 sq.cm
B. 13.52 sq.cm
C. 12.62 sq.cm
D. 10 sq.cm
The ratio between the length and breadth of a rectangular field is 5:4. If the breadth is 20 meters less than the length. The perimeter of the field is_________?
A. 260m
B. 280m
C. 360m
D. None of these