A. 5:4
B. 9:4
C. 4:5
D. 4:9
Explanation:
Let original side be x metres, then area = x2 Sq.m
New side =(150% of x)m = (150/100 × x)m =(3x/2)m
New area =(3x/2 x 3x/2)m2 = 9x2/4 m2
Required ratio of area = 9x2/4 : x2 = 9:4
Related Mcqs:
- The area of a square is 4096 sq cm. Find the ratio of the breadth and the length of a rectangle whose length is twice the side of the square and breadth is 24 cm less than the side of the square.
A. 18 : 5
B. 7 : 16
C. 5 : 14
D. None of these - A big rectangular plot of area 4320 Sq.m is divided into 3 square shaped smaller plots by fencing parallel to the smaller side of the plot. However, some area of land was still left as a square plot could not be formed. So 3 more square shaped plots were formed by fencing parallel to the longer side of the original plot. Such that no area of the plot was left a surplus. What are the dimensions of the original plot?
A. 160m × 27m
B. 240m × 18m
C. 120m × 36m
D. 135m × 32m - 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 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 diagonal of a square is 4√2cm. The diagonal is another square whose area is double that of the first square is__________?
A. 8cm
B. 8√2cm
C. 16cm
D. 4√2cm - Find the number of square tiles to cover the floor of a room measuring 4 m * 9 m leaving 0.25 m space around the room. A side of square tile is given to be 25 cms?
A. 425
B. 476
C. 450
D. 350 - 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% - 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 side of a square is increased by 30 %. Its area is increased by:_________?
A. 9 %
B. 30 %
C. 60 %
D. 69 % - If the side of a square is increased by 25 %. Then its area is increased by:__________?
A. 25 %
B. 55%
C. 40.5 %
D. 56.25 %
Advertisement
