alfretztay wrote:The digits in the ones place are as follows :Nickal wrote:Hi! need some help here. Thanks!

What is the digit in the ones place in the product of the following

9x99x999x9999x99999x999999x9999999

x99999999x999999999

9 -------> 9

9 x 9 -------> 1

9 x 9 x 9 -------> 9

9 x 9 x 9 x 9 -------> 1

...

9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x 9 -------> 9

Ans : 9.

Tq!