Mensuration

LSSSSB Non-Technical · Mathematics · 100 practice questions with answers and explanations: 50 Easy, 50 Medium, 0 Hard.

Sample questions

Sample Easy question 1

Find the volume of a cube with side 7 cm.

  1. 341
  2. 343
  3. 345
  4. 339
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Answer: B. Volume = 7³ = 343 cm³.

Sample Easy question 2

Find the total surface area of a cube with side 6 cm.

  1. 216
  2. 210
  3. 212
  4. 214
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Answer: A. TSA = 6 × side² = 6 × 36 = 216 cm².

Sample Easy question 3

Find the total surface area of a cube with side 8 cm.

  1. 384
  2. 380
  3. 382
  4. 386
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Answer: A. TSA = 6 × 64 = 384 cm².

Sample Medium question 4

The perimeter of a rectangle is 60 cm and its length is 18 cm. Find its area.

  1. 219
  2. 210
  3. 216
  4. 213
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Answer: C. Half-perimeter = 30, breadth = 30 - 18 = 12 cm; area = 18 × 12 = 216 cm².

Sample Medium question 5

Find the area of a rhombus with diagonals 16 cm and 12 cm.

  1. 92
  2. 96
  3. 98
  4. 94
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Answer: B. Area = (1/2) × d1 × d2 = (1/2) × 16 × 12 = 96 cm².

Sample Medium question 6

Find the area of a rhombus with diagonals 20 cm and 14 cm.

  1. 140
  2. 138
  3. 142
  4. 136
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Answer: A. Area = (1/2) × 20 × 14 = 140 cm².

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