GRADE 10 - CH 1 - REAL NUMBERS REVISION CLASS TEST-1

The decimal expansion of 22/7 is

• Terminating

• Non-terminating and repeating

• Non-terminating and Non-repeating

• None of the above

The prime factorisation of 96 is

• 2⁵ X 3

• 2⁶

• 2⁴ X 6

• 2⁴ × 32

• a

• b

• c

• d

If the product of two numbers is 1050 and their HCF is 25, find their LCM.

• 42

• 25

• 105

• none of these

Find the greatest possible length which can be used to measure exactly the length 7 m, 3 m 85 cm and 12 m 95 cm.

• 40 cm

• 25 cm

• 35 cm

• none of these

On a morning walk, three persons step off together and their steps measure 40 cm, 42 cm and 45 cm, respectively. What is the minimum distance each should walk so that each can cover the same distance in complete steps?

• 400 cm

• 420 cm

• 450 cm

• 2520 cm

LCM of (2³ × 3 × 5) and (2⁴ × 5 × 7) is

• 40

• 560

• 1680

• 1120

Which of the following has a terminating decimal expansion?

•  $\frac{23}{100}$  

•  $\frac{17}{9}$  

•  $\frac{8}{75}$  

•  $\frac{3}{35}$  

• a

• b

• c

• d

• a

• b

• c

• d