Q1)-If the height and base of the triangle is decreased and increased by 60 %, then at what percentage the area of the triangle will increase or decrease ?
Q2)-How many tiles of 20 cm length and 10 cm width are required to pave the floor of a room 8 m long and 5 m wide ?
Q3)-Let a be the side of an equilateral triangle and A be its area. Then find the relationship between A and A1 where A1 is the area of another equilateral triangle with side 2a.
Q4)-A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:
Q5)-An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:
Q6)-A hall is 10 metres long and 8 metres wide. What will be the cost of carpenting the room if 0.5 metres of space is left around the room ? The rate of 0.25 metre wide carpet is Rs 20 per metre.
Q7)-A circular garden has a 7 m wide road around the boarder. Find the cost of leveling the road at Rs 5 per square meter if the radius of inner circle is 21 m ?
Q8)-A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is:
Q9)-A horse is tied with a 14 m long rope. How much ground will it be able to graze ?
Q10)-What is the least number of squares tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad?
36% decreasing
36% increasing
40% decreasing
40% increasing
Ans.- A
Q2)-How many tiles of 20 cm length and 10 cm width are required to pave the floor of a room 8 m long and 5 m wide ?
2100
1500
2500
2000
Ans.- D
Q3)-Let a be the side of an equilateral triangle and A be its area. Then find the relationship between A and A1 where A1 is the area of another equilateral triangle with side 2a.
1:3
1:4
1:2
2:1
Ans.- B
Q4)-A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:
720
900
1200
1800
Ans.- C
Q5)-An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:
2%
2.02%
4%
4.04%
Ans.- D
Q6)-A hall is 10 metres long and 8 metres wide. What will be the cost of carpenting the room if 0.5 metres of space is left around the room ? The rate of 0.25 metre wide carpet is Rs 20 per metre.
Rs 1560
Rs 2520
Rs 1875
Rs 5040
Ans.- D
Q7)-A circular garden has a 7 m wide road around the boarder. Find the cost of leveling the road at Rs 5 per square meter if the radius of inner circle is 21 m ?
Rs 3490
Rs 5390
Rs 2930
Rs 5695
Ans.- B
Q8)-A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is:
10%
10.08%
20%
28%
Ans.- D
Q9)-A horse is tied with a 14 m long rope. How much ground will it be able to graze ?
125 sq. m
275 sq. m
616 sq. m
675 sq. m
Ans.- C
Q10)-What is the least number of squares tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad?
814
820
840
844
Ans.- A
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