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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
5.23 Number Theory Review Test

Q 1: The number of factors of 72 is _____.
12
10

Q 2: L.C.M. of 12 and 8 is _____.
36
24

Q 3: If A and B are two natural numbers and L and G are their L.C.M. and G.C.D. then relation between these four is A*B = L*G. (True/False)
False
True

Q 4: 49 is ____ number.
Even number
Odd number

Q 5: If a and b are co-primes their G.C.D. = ____.
2
1

Q 6: If p and q are two numbers and r is G.C.D. then L.C.M. = (p.q/r).(True/False)
False
True

Q 7: If two numbers do not have any common factors other than 1 they are called relatively prime or co-primes. (True/False)
True
False

Q 8: 35 and 21 are relatively prime numbers. (True/False)
False
True

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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