Real Numbers

 $For\ some\ integer\ m,\ any\ positive\ odd\ integer\ is\ of\ the\ form$  

• m

• 2m

• 2m + 1

• m + 1

 $If\ two\ positive\ integers\ p\ and\ q\ can\ be\exp ressed\ as\ p=ab^2and\ q=a^3b^3;\ a,b\ being\ prime\ numbers,\ then\ LCM\ (p,q)\ is$  

• ab

•  $a^2b^2$  

•  $a^{3\ }b^3$  

•  $a^{3^{ }}b^2\ \$  

Euclid's division Lemma states that for any two positive integers 'a' and 'b', there exist unique integers 'q' and 'r' such that a = bq +rm where 'r' must satisfy____

• 1 < r < b
• 0 < r < b
• 0≤ r < b
• 0 < r ≤ b

A true statement used to prove other statements is called a

(a)  

Look at the image and vote which is the correct answer

• 221

• 63

• $3^{4\ }\times7^2\times11$

• 441

Find the largest number which divides 70 and 125, leaving remainders 5 and 8, respectively.

Given the following radical, decide if it is rational or irrational:
√121

• Rational
• Irrational

Tags

CCSS.8.NS.A.1

The values of the remainder r, when a positive integer a is divided by 5 are:

• 0,1,2,3,4,5

• 1,2,3,4,5

• 1,2,3,4

• 0,1,2,3,4

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?

(a)  

Look at the picture and find the least number divisible by first four composite numbers

• 72

• 45

• 60

• 420

• 280