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Basic Mathematics
Welcome to your Basic Mathematics
The sum or difference of two irrational numbers is always
rational or irrational
irrational
rational
not determined
If set A = {1, 2, 3, 4, 5,…} is given, then it represents:
Whole numbers
Rational Numbers
Complex number
Natural numbers
Euclid’s division lemma states that for two positive integers a and b, there exist unique integers q and r such that a = bq + r, where r must satisfy
0 ≤ r < b
1 < r < b
0 < r < b
0 < r ≤ b
The values of the remainder r, when a positive integer a is divided by 3 are
1, 2
Only 1
Only 0 or 1
0, 1, 2
For some integer n, the odd integer is represented in the form of:
2n +1
2n
n
n+1
Which of the following is not irrational?
3√7
(3 + √7) (3 – √7)
(3 – √7)
(3 + √7)
he least number that is divisible by all the numbers from 1 to 5 is:
60
70
80
90
The largest number that divides 70 and 125, which leaves the remainders 5 and 8, is:
13
65
15
25
The prime factorisation of 96 is
2^6
2^4 × 3
2^4 × 32
2^5 × 3
If p and q are integers and is represented in the form of p/q, then it is a:
Whole number
Natural number
Even number
Rational number
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