Question

1. The sum of a rational and irrational number is (a) rational (b) irrational (c) both of above (d) none of above
2. The product of three consecutive positive integers is always divisible by (a) 4 (b) 6 (c) no common factor (d) only 1
3. The product of a non-zero rational and an irrational number is (a) always rational (b) rational or irrational (c) always irrational (d) zero
4. The product of two consecutive natural numbers is always: (a) prime number (b) even number (c) odd number (d) even or odd
5. Which of the following statement is true? (a) Every Integer is a whole number. (b) Every rational number is an integer. (c) Every irrational number is a real number. (d) Every real number is an irrational number.
6. 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 (a) a < r < b (b) 0 < r ≤ b​

Answer 1

Answer:

irrational

only 1

rational or irrational

prime number

(a) Every Integer is a whole number.

Answer 2

Answer:

irrational

example :--

√4 -4 = irrational