CTET CTET Math 2

Question 1

A train travels 360 km in 4 hours. What is its speed in meters per second?

Accepted Answer

25 m/s

Answer

360 km/4 h = 90 km/h; 90 × 1000/3600 = 25 m/s.

Question 2

Which property is illustrated by: 3 × (4 + 5) = (3 × 4) + (3 × 5)?

Accepted Answer

Distributive property

Answer

Multiplication distributing over addition is the distributive property.

Question 3

The area of a rhombus with diagonals 12 cm and 8 cm is:

Accepted Answer

48 cm²

Answer

Area of rhombus = (d1 × d2)/2 = (12 × 8)/2 = 48 cm².

Question 4

If 20% of a number is 50, what is 35% of the same number?

Accepted Answer

87.5

Answer

The number = 50/0.20 = 250; 35% of 250 = 87.5.

Question 5

The HCF of 48 and 72 is:

Accepted Answer

24

Answer

Prime factors: 48 = 2⁴×3, 72 = 2³×3²; HCF = 2³×3 = 24.

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