The smallest natural number is (a) `0` (b) `1` (c) `-1` (d) None of these

0 is the smallest natural number.

The HCF of first 100 natural numbers is (a) 2 (b) 100 (c) 1 (d) None of these

The predecessor of 1 in natural number is 0 (b) 2 (c) -1 (d) None of these

The HCF of first 100 natural numbers is 2 (b) 100 (c) 1 (d) None of these

The predecessor of 1 in natural number is 0 (b) 2(c)-1 (d) None of these

The number of whole number between the smallest whole number and the greatest three digit number is (a) 1000 (b) 999 (c) 998 (d) None of these

(i) The first and the smallest natural number is 1.

The smallest three-digit prime number is 101 (b) 103 (c) 107 (d) None of these

The smallest whole number is 0 (b) 1(c)-1 (d) None of these

The predecessor of 1 in whole number is (a)0 (b) -1 (c) 2 (d) None of these