Length of a rectangular ground is 15m more than its breadth. What will be its area if Length : Breadth is 7:4?
Answer: A
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The area of a parallelogram is 128sq m and its altitude is twice the corresponding base. Then the length of the base is?
Answer: A
2x * x = 128 => x= 8
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Shyam’s room has dimensions 6m x 5m x 4m. The room also has a door of dimension 2.5m x 1.2m and a window of dimensions 1m x 1m. What will be cost of painting the four walls of his room if rate of painting is Rs. 2 per sq.m.?
Answer: D
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The radius of a circular wheel is 1.75 m, how many revolutions will it make in traveling 1 km?
Answer: A
2 * 22/7 * 1.75 * x = 11000
x = 1000
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The perimeter of one square is 48 cm and that of another is 20 cm. Find the perimeter and the diagonal of a square which is equal in area to these two combined?
Answer: B
4a = 48 4a = 20
a = 12 a = 5
a2 = 144 a2 = 25
Combined area = a2 = 169 => a = 13
d = 13√2
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A rope of which a calf is tied is increased from 12 m to 23 m, how much additional grassy ground shall it graze?
Answer: C
π (23⊃2; – 12⊃2;) = 1210
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A field with equal sides of 40m is full of grass. One cow is tied to each corner of the field by a rope of 14m. How much grass will not be eaten by those 4 cows?
Answer: A
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If the length of diagonal AC of a square ABCD is 5.2 cm then area of the square ABCD is:
Answer: B
Area = ½ × (diagonal)⊃2;
= (1/2×5.2×5.2)Sq.cm = 13.52 Sq.cm
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Which one of the following has a greater perimeter than the rest?
Answer: C
Length of rectangle , l= 10 cm And
Area of Rectangle = 40 Sq.cm
Let Breadth of Rectangle, b = 40/10 = 4 cm
Therefore, Perimeter of rectangle = 2(10 + 4) = 28 cm
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The radius of the two circular fields is in the ratio 3: 5 the area of the first field is what percent less than the area of the second?
Answer: D
r = 3 πr⊃2; = 9
r = 5 πr⊃2; = 25
25 π – 16 π
100 ---- ? => 64%
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