Basic Mensuration - Area & Perimeter for Competitive Exams

Basic Mensuration - Area & Perimeter - Case Studies

Q. A rectangle has a length of 10 cm and a width of 2 cm. What is its area?

A. 20 cm²
B. 22 cm²
C. 24 cm²
D. 26 cm²

Solution

Area = length × width = 10 cm × 2 cm = 20 cm².

Correct Answer: A — 20 cm²

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Q. A square has a side length of 4 cm. What is its perimeter?

A. 16 cm
B. 12 cm
C. 8 cm
D. 20 cm

Solution

Perimeter = 4 sides × 4 cm = 16 cm.

Correct Answer: A — 16 cm

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Q. If a book costs $15 and you buy 3 books, how much do you spend?

A. 45
B. 30
C. 60
D. 15

Solution

$15 × 3 = $45.

Correct Answer: A — 45

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Q. If a book costs $5 and you buy 3 books, how much do you spend?

A. 10
B. 12
C. 15
D. 18

Solution

Total cost = 5 x 3 = $15

Correct Answer: C — 15

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Q. If a rectangle has a length of 10 cm and a width of 2 cm, what is its area?

A. 20 cm²
B. 12 cm²
C. 15 cm²
D. 25 cm²

Solution

Area = length × width = 10 cm × 2 cm = 20 cm².

Correct Answer: A — 20 cm²

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Q. If a triangle has a base of 6 cm and a height of 4 cm, what is its area?

A. 12 cm²
B. 14 cm²
C. 16 cm²
D. 18 cm²

Solution

Area = 1/2 x base x height = 1/2 x 6 x 4 = 12 cm²

Correct Answer: A — 12 cm²

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Q. If you have 10 apples and you give away 4, how many apples do you have left?

A. 6
B. 4
C. 10
D. 8

Solution

10 apples - 4 apples = 6 apples left.

Correct Answer: A — 6

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Q. If you have 3 apples and you buy 5 more, how many apples do you have in total?

A. 6
B. 7
C. 8
D. 9

Solution

3 apples + 5 apples = 8 apples.

Correct Answer: B — 7

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Q. What is 12 - 7?

A. 3
B. 4
C. 5
D. 6

Solution

12 - 7 = 5.

Correct Answer: C — 5

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Q. What is 15 ÷ 3?

A. 3
B. 4
C. 5
D. 6

Solution

15 ÷ 3 = 5.

Correct Answer: C — 5

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Q. What is 2 + 2 x 2?

A. 4
B. 6
C. 8
D. 10

Solution

2 + 2 x 2 = 2 + 4 = 6

Correct Answer: B — 6

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Q. What is 2 x 5 - 3?

A. 5
B. 7
C. 8
D. 10

Solution

2 x 5 - 3 = 10 - 3 = 7

Correct Answer: B — 7

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Q. What is 2 x 5 ÷ 5?

A. 1
B. 2
C. 5
D. 10

Solution

2 x 5 ÷ 5 = 2

Correct Answer: B — 2

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Q. What is 6 multiplied by 7?

A. 42
B. 36
C. 48
D. 54

Solution

6 × 7 = 42.

Correct Answer: A — 42

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Q. What is 6 × 4?

A. 20
B. 22
C. 24
D. 26

Solution

6 × 4 = 24.

Correct Answer: C — 24

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Q. What is 9 minus 3?

A. 6
B. 3
C. 9
D. 12

Solution

9 - 3 = 6.

Correct Answer: A — 6

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Q. What is the area of a rectangle with a length of 5 cm and a width of 3 cm?

A. 8 cm²
B. 15 cm²
C. 18 cm²
D. 20 cm²

Solution

Area = length × width = 5 cm × 3 cm = 15 cm².

Correct Answer: B — 15 cm²

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Basic Mensuration - Area & Perimeter - Case Studies

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