The area of a square is three-fifths the area of a rectangle. The length of the rectangle is 25 cm and its breadth is 10 cm less than its length. What is the perimeter of the square ?
A. 44 cm
B. 60 cm
C. 80 cm
D. Cannot be determined
E. None of these
Answer: Option B
Solution(By Examveda Team)
Length of rectangle = 25 cmBreadth of rectangle = 15 cm
Area of rectangle :
$$\eqalign{ & = \left( {25 \times 15} \right)c{m^2} \cr & = 375\,cm \cr} $$
Area of square :
$$\eqalign{ & = \left( {\frac{3}{5} \times 375} \right)c{m^2} \cr & = 225\,c{m^2} \cr} $$
Side of square :
$$\eqalign{ & = \sqrt {225} \,cm \cr & = 15\,cm \cr} $$
Perimeter of square :
$$\eqalign{ & = \left( {4 \times 15} \right)cm \cr & = 60\,cm \cr} $$
Related Questions on Area
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B. 153600 m2
C. 30720 m2
D. 307200 m2
E. None of these
A. 2%
B. 2.02%
C. 4%
D. 4.04%
E. None of these
A. 16 cm
B. 18 cm
C. 24 cm
D. Data inadequate
E. None of these
The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:
A. 40%
B. 42%
C. 44%
D. 46%
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