Lakshya Education MCQs

Question:

  1. There is a cubical room whose length is 8 m. The number of students that it can accommodate, if each student requires 2.50 m3 of space, is

Options:
A.104
B.204
C.304
D. none of these
Answer: Option B

Submit Answer & Explaination

Earn Reward Points by submitting Detailed Explaination for this Question

More Questions on This Topic :

Question 1.

  1. A hall whose length is 16 m and breadth twice its height takes 168 m of paper 2 m wide for its four walls. The area of the floor is

Options:
  1.    188 m2
  2.    190 m2
  3.    192 m2
  4.    194 m2
Answer: Option C
Question 2.

  1. The sides of a cuboid, whose volume is 210 cm3, total surface area is 214 cm2 and the area of the base is 42 cm2, are

Options:
  1.    5 cm, 6 cm , 7 cm
  2.    6 cm, 7 cm , 5 cm
  3.    7 cm, 6 cm , 5 cm
  4.    none of these
Answer: Option C
Question 3.

  1. The outer dimensions of a closed wooden box are 45 cm × 35 cm × 30 cm. The box is made of wood 2.5 cm thick. The cost of wood used at Rs 4 per dm3 is

Options:
  1.    Rs 49.00
  2.    Rs 59.00
  3.    Rs 69.00
  4.    Rs 79.00
Answer: Option C
Question 4.

  1. A rectangular water reservoir measures 8 m by 4.5 m at the base. Water flows into it through a pipe whose cross-section is 5 cm × 3 cm at the rate of 10 m per second. The height to which the water will rise in the reservoir in 40 minutes is

Options:
  1.    0.5 m
  2.    1 m
  3.    1.5 m
  4.    2 m
Answer: Option B
Question 5.

  1. The length of the longest rod that can be placed in a room 12 m × 9 m × 8 m is

Options:
  1.    17 m
  2.    18 m
  3.    19 m
  4.    20 m
Answer: Option A
Question 6.

  1. Three cubes of metal whose edges are in the ratio 3 : 4 : 5 are melted down into a single cube whose diagonal is 12  cm. The edges of the three cubes are

Options:
  1.    6 cm , 8 cm , 10 cm
  2.    8 cm , 10 cm , 6 cm
  3.    10 cm , 8 cm , 6 cm
  4.    none of thes
Answer: Option A