Question 121
The number 123456789 and 999999999 are multiplied. How many of the digits in the product are 9's
Solution
To find : $$123456789\times999999999$$
= $$123456789\times(1000000000-1)$$
= $$123456789000000000-123456789$$
= $$12345678876543211$$
Thus, there are 0 9's
=> Ans - (A)
