(2) If the product of two whole numbers is zero, can we say that one or both of them will be zero? Justify through examples.
Sol. If any number is multiplied with 0, it gives 0 only. It means that one of the two whole number, definitely have to be zero.
Example: 2 x 0 = 0
99 × 0 = 0
But, since zero is a whole number and multiplication of two zeroes i.e. 0 x 0 also gives 0
Example: 0 × 0 = 0
Therefore. Both the numbers can also be zero.
Hence, we can say that if the product of two whole number is zero, one of them need to be zero in all the condition. But for only one single case both the numbers are zero i.e. 0 x 0 = 0. Ans.