Lakshya Education MCQs

Question: When a ball bounces, it rises to $$\frac{2}{3}$$ of the height from which it fell. If the ball is dropped from a height of 36 m, how high will it rise at the third bounce ?
Options:
A.$$10\frac{1}{3}$$ m
B.$$10\frac{2}{3}$$ m
C.$$12\frac{1}{3}$$ m
D.$$12\frac{2}{3}$$ m
Answer: Option B

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More Questions on This Topic :

Question 1. The sum of perimeters of the six faces of a cuboid is 72 cm and the total surface area of the cuboid is 16 cm2. Find the longest possible length that can be kept inside the cuboid :
  1.    5.2 cm
  2.    7.8 cm
  3.    8.05 cm
  4.    8.36 cm
Answer: Option C
Question 2. The surface area of a cube is 150 cm2. Its volume is :
  1.    64 $${\text{c}}{{\text{m}}^3}$$
  2.    125 $${\text{c}}{{\text{m}}^3}$$
  3.    150 $${\text{c}}{{\text{m}}^3}$$
  4.    216 $${\text{c}}{{\text{m}}^3}$$
Answer: Option B
Question 3. If three equal cubes are placed adjacently in a row, then the ratio of the total surface area of the new cuboid to the sum of the surface areas of the three cubes will be ?
  1.    1 : 3
  2.    2 : 3
  3.    5 : 9
  4.    7 : 9
Answer: Option D
Question 4. The base of a pyramid is an equilateral triangle of side 1 m. If the height of the pyramid is 4 metres, then the volume is :
  1.    0.550 m3
  2.    0.577 m3
  3.    0.678 m3
  4.    0.750 m3
Answer: Option B
Question 5. Each side of a cube is decreased by 25%. Find the ratio of the volume of the original cube and the resulting cube = ?
  1.    64 : 1
  2.    27 : 64
  3.    64 : 27
  4.    8 : 1
Answer: Option C
Question 6. The capacities of two hemispherical vessels are 6.4 litres and 21.6 litres. The areas of inner curved surfaces of the vessels will be in the ratio of :
  1.    $$\sqrt 2 $$ : $$\sqrt 3 $$
  2.    2 : 3
  3.    4 : 9
  4.    16 : 81
Answer: Option C

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