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Some lights are bulbs (I) + All bulbs are fans (A) → Some lights are fans (I) → Conversion → Some fans are lights (I) → Probable conclusion → All lights may be fans (A). Hence conclusion I follows. Some rays are lights (I) + Some lights are bulbs (I) → No conclusion. Hence conclusion II does not follow.
Area of a rectangle is equal to the total surface area of a hemisphere having volume 13718 cm³ . Find the perimeter of the rectangle if its length is 1...
A closed wooden box of uniform thickness has length, breadth and height 20cms, 16cms and 12 cms respectively. If the thickness of the wooden block is 2 ...
The circumference of two circles are 132 cm and 88 cm respectively. What is the difference between the area of the larger circle and the smaller circle?
PQRS is a rectangle. T is a point on PQ such that RTQ is an isosceles triangle and PT = 5 QT. If the area of triangle RTQ is 12 √3 sq.cm, then the ar...
A giant circular wheel has a diameter of 21 metres. In how many revolutions will the wheel cover a total of 16.5 km?
A race track is in the shape of a rectangle with length of 10 metres and area of 3600 m2. A car takes 20 seconds to make one lap around the p...
The volume of cone is 1597.2 cm3. If its height is 1.4 cm then find the radius of the cone.
An iron pillar consists of two parts: one in the shape of a right circular cylinder and the other in the shape of a right circular cone. The radius of b...
A cuboid has dimensions 12 cm, 8 cm, and 6 cm. If all the dimensions are increased by 50%, what will be the percentage increase in the volume of the cub...