Question

1. Which of the following are even numbers?
16, 27, 31, 38, 44, 48, 55, 61, 68, 77, 84, 89, 92, 97
2. List all the prime numbers between :
(a) 10 and 30
(b) 42 and 60
(c) 75 and 99
3. Which of the following numbers are prime?
5, 11, 17, 28, 35, 41, 57, 63, 77, 79, 81, 83, 88, 97
4. Which of the following pairs of numbers are twin primes?
(a) 5,7
(b) 27, 31
(c) 71, 73
(d) 41, 45
5. List 6 consecutive composite numbers less than 100.
6. Which of the following are co-prime numbers?
(a) 48,52
(b) 9,16
(c) 32, 49
(d) 33,51​

Answer 1

Answer:

1) 16,38,44,48,68 , 84,92

2) a) 11,13,17,19

b) 43,47,53,59,

c) 79,83,87,91,97

3) 11,17,41,5,79 , 83,97

4) 5,7

5)81,91,71,61,51

6) d