Question

Q.1. (A) Multiple choice questions (5 marks) 1) The common factors of 45, 90 and 210 are a) 1, 3, 5, 15 b) 1, 3, 5 c) 1, 5, 15 d) 1, 3 2) The product of the predecessor of 100 and successor of 99 is ________. a) 9900 b) 1990 c) 10099 d) 10000 3) The HCF of two prime number is always a) 0 b) 1 c) 2 d) None of these 4) The additive identity for whole numbers is a) 1 b) 10 c) 0 d) None of these 5) The multiplicative identity for whole numbers is a) 1 b) 0 c) number itself d) None of these ​

Answer 1

Step-by-step explanation:

1) 1,3,5 (b)

2) 9900 (a)

3) 1 (a)

4) 0 (c)

5) 1 (a)