Mathematics
Statement I: A mobile phone is 15 cm long and 8 cm wide. The sum of the areas of the front and the back of the mobile phone is 240 cm2.
Statement II: Area of a square with side a is a2.
Statement I is true but statement II is false.
Statement I is false but Statement II is true.
Both Statement I and Statement II are true.
Both Statement I and Statement II are false.
Answer
Statement I:
Area of the front (or back) of the mobile phone = length × breadth = 15 × 8 = 120 cm2
Sum of the areas of the front and the back = 2 × 120 = 240 cm2. Statement I is true.
Statement II: The area of a square with side a is given by side × side = a × a = a2. Statement II is true.
Both Statement I and Statement II are true.
Hence, option 3 is the correct option.
Related Questions
Statement I: I have two wires of 27 m each. I bend one into a circle and the other into an equilateral triangle. Both shapes have the same perimeter.
Statement II: The perimeter of a closed shape is the length of its boundary.
Statement I is true but statement II is false.
Statement I is false but Statement II is true.
Both Statement I and Statement II are true.
Both Statement I and Statement II are false.
Statement I: Two rectangular sheets, of length 20 m and width 10 m each, are placed edge to edge along their longer sides. The perimeter of the resulting figure is 80 m.
Statement II: Perimeter of a pentagon is five times the length of any side.
Statement I is true but statement II is false.
Statement I is false but Statement II is true.
Both Statement I and Statement II are true.
Both Statement I and Statement II are false.
Statement I: Area and perimeter of a given shape always have the same units.
Statement II: Area of a closed plane figure measures the region enclosed by its boundary.
Statement I is true but statement II is false.
Statement I is false but Statement II is true.
Both Statement I and Statement II are true.
Both Statement I and Statement II are false.