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.Management Sciences
Category: Areas
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 area of circle is 616 sq cm then its circumference?
A. 78 m
B. 88 m
C. 75 m
D. 70 m
Find the area of circle whose radius is 7m?
A. 124 sq m
B. 154 sq m
C. 145 sq m
D. 167 sq m
Bilal’s room has a floor of 8m by 4m. He decides to tile the floor with tiles of 25cm x 20 cm. How many tiles will he need?
A. 320 tiles
B. 640 tiles
C. 160 tiles
D. 6.4 tiles
The length of a rectangular increased by 10% and it;s breadth is decreased by 10 %. Then the area of the new rectangle is_________?
A. Neither increased nor decreased
B. Increased by 1%
C. Decreased by 1%
D. Decreased by 10%
The area of a rectangle is 12 sq.metres and it’s length is 3 times that of it’s breadth. What is the perimeter of the rectangle?
A. 14m
B. 18m
C. 4m
D. None of these
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