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Let the required number = (LCM of denominator 5 and 8) = 40 According to the question, Wrong answer = 8/5 × 40 = 64 Correct answer = 5/8 × 40 = 25 Required percentage of error = (64-25)/25 × 100 = 156%
A cylindrical tank has a radius of 7 meters and a height of 24 meters. A cone is placed inside the tank such that it touches the bottom and the sides of...
A cylindrical tank has a radius of 7 meters and a height of 10 meters. How many liters of water can it hold? (1 cubic meter = 1,000 liters)
The perimeter of a rectangular field is 44 metres and its area is 61.5 m2 . What is the length of the diagonal of this field?
The angle of elevation of the top of a tower from a point on ground which is 30 mtrs. away from the foot of the tower is 30°. Height of the tower is:
In a rectangular floor of length and breadth of 21 metres and 6 metres, respectively, square tiles each of 2 metre edge length are to be laid. If the co...
Steel is used to make a hemispherical bowl that is 0.4 cm thick. The bowl's inner radius is 7 cm. Find the bowl's outside curved surface.
If the length of certain rectangle is decreased by 4 cm and breadth is increased by 2 cm, it would result in a square of the same area. What is the peri...
If the side of square and its area is in the ratio of 1:9 then find its perimeter?
The circumference of a circle is 33 cm and the length of the rectangle is 8 times the radius of the circle. Find the area (in cm2) of the rec...
A solid cube of side 8 cm is dropped into a rectangular container of length 16 cm, breadth 8 cm and height 15 cm which is partly filled with water. If t...
