CDS Elementary Mathematics

Question 1

If a train travels 360 km in 4 hours, what is its speed in km/h?

Accepted Answer

90

Answer

80

Answer

100

Answer

72

Question 2

What is 15% of 240?

Accepted Answer

36

Answer

32

Answer

40

Answer

24

Question 3

A rectangle has length 12 cm and width 7 cm. What is its area?

Accepted Answer

84 sq cm

Answer

76 sq cm

Answer

96 sq cm

Answer

38 sq cm

Question 4

Simplify: (3/4) ÷ (9/16)

Accepted Answer

4/3

Answer

3/4

Answer

27/64

Answer

1/3

Question 5

What is the LCM of 12 and 18?

Accepted Answer

36

Answer

6

Answer

72

Answer

216

Question 6

A shopkeeper buys an item for $80 and sells it for $100. What is the profit percentage?

Accepted Answer

25%

Answer

20%

Answer

30%

Answer

15%