Identify the correct statement(s)

Options

A. Number of naughts standing at the end of `|--125` is 30.
B. A telegraph has 10 arms and each arm is capable of 9 distinct positions excluding the position of rest. The number of signals that can be transmitted is `10^(10)` – 1.
C. Number of numbers greater than 4 lacs which can be formed by using only the digits 0, 2, 2, 4, 4 and 5 is 90
D. In a table tennis tournament, every player plays with every other player. If the number of games played is 5050 then the number of players in the tournament is 100.

Answer

B, C