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Successor and Predecessor

Question 16 T...

Question

Question 16
The product of a non-zero whole number and its successor is always

(A) an even number
(B) an odd number
(C) a prime number
(D) divisible by 3

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Solution

The product of a non-zero whole number and its successor is always an even number.
Example:
(i) $6 \times 7 = 42$
(ii) $13 \times 14 = 182$

Therefore option (A) is correct.

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Similar questions

State whether the following statements are True or False:

(a) The sum of three odd numbers is even.

(b) The sum of two odd numbers and one even number is even.

(d) If an even number is divided by 2, the quotient is always odd.

(e) All prime numbers are odd.

(f) Prime numbers do not have any factors.

(g) Sum of two prime numbers is always even.

(h) 2 is the only even prime number.

(i) All even numbers are composite numbers.

(j) The product of two even numbers is always even.

State true (T) of false (F):

$(i)$ The sum of primes cannot be a prime.

$(i i)$ The product of primes cannot be a prime.

$(i i i)$ An even number is composite.

$(i v)$ Two consecutive numbers cannot be both primes.

$(v)$ Odd numbers cannot be composite.

$(v i)$ Odd numbers cannot be written as sum of primes.

$(v i i)$ A number and its successor are always co-primes.

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