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1. An error 2% in excess is made while measuring the side of a square. What is the percentage of error in the calculated area of the square?A. 4.04 %
B. 2.02 %
C. 4 %
D. 2 %
Answer : Option A
2. A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. The area of the lawn is 2109 sq. m. what is
the width of the road?
A. 5 m
B. 4 m
C. 2 m
D. 3 m
Answer : Option D
3. A towel, when bleached, lost 20% of its length and 10% of its breadth. What is the percentage of
decrease in area?
A. 30 %
B. 28 %
C. 32 %
D. 26 %
Answer : Option B
4. If the length of a rectangle is halved and its breadth is tripled, what is the percentage change in its area?
A. 25 % Increase
B. 25 % Decrease
C. 50 % Decrease
D. 50 % Increase
Answer : Option D
5. A person walked diagonally across a square plot. Approximately, what was the percent saved by not walking along the edges?
A. 35%
B. 30 %
C. 20 %
D. 25%
Answer : Option B
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