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.Management Sciences
Category: Areas
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%
A hall 20 m long and 15 m broad is surrounded by a verandah of uniform width of 2.5 m. The cast of flooring the verandah at the rate of Rs 3.50 per sq. Meter is__________?
A. Rs.500
B. Rs. 600
C. Rs. 700
D. Rs. 800
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
The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?
A. 25% increase
B. 50% increase
C. 50% decrease
D. 75% decrease
If the side of a square is increased by 25% then it’s area is increased by_________?
A. 25%
B. 40.5%
C. 55%
D. 56.25%
In a Circle of Radius 5 cm if AB and AC are two equal chords of length 6cm each, then the length of chord BC is___________?
A. 24/5 cm
B. 12/5 cm
C. 7/5 cm
D. None of these
The area of a rhombus in 2016 Sq.cm and its side is 65cm. The length of its diagonals are________?
A. 125cm, 35cm
B. 126cm,32cm
C. 132cm,26cm
D. 135cm,25cm
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