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No wall is a roof (E) + Some roofs are windows (I) ⇒ Some windows are not walls (O*) Some pictures are walls (I) + No wall is a roof (E) ⇒ Some pictures are not roofs (O) ⇒ [Probable conclusion] ⇒ Some pictures may be roofs No wall is a roof (E) ⇒ Conversion ⇒ Some roofs are not walls (O). Hence, option 4 is correct. By elimination method - By 1, No + no = no –ve relation can be drawn between window and wall. Hence it is eliminated. By 2, no –ve relation can be drawn between wall and roof. Hence it is eliminated. By 3, All + No = no possibility case can be drawn between picture and roof. Hence it is eliminated. Hence answer is option 4.
The perimeter of a rectangle of length 2(x + 2) cm and breadth 2(x + 4) cm is double the perimeter of a square of area 256 cm². Find the area of the re...
The sum of the radius and height of a cylinder is 19m. The total surface area of the cylinder is 1,672 m². What is the volume of the cylinder?
A cuboid is formed by combining two identical cubes. If the surface area of each cube is 600 cm², find the total surface area of the resulting cuboid.
Nine cubes with each side measuring 3 cm are aligned in a straight row to build a cuboid. What is the total surface area of the resulting cuboid?
If the curved surface area and the radius of a cylinder are 440 cm2 and 7 cm, respectively, then find the volume (in cm3) of the c...
If the radius of a circle is given up to 15 times, how much of its perimeter will be the perimeter of the previous perimeter?
A right circular cone has a height that is double its radius, and its volume is measured at 2,250π cm³. If the radius is reduced to one-third and the ...
If base of a prism is square of side 12 cm & height is 22 cm . What is the volume of prism?
The inner radius of a cylindrical pipe is 7 cm. Water flows from this pipe at a speed of 5 km/h and falls into a rectangular tank 100 meters long and 44...