Answer:
100
Step-by-step explanation:
The base 10 Integers 36, 64, and 81 can be converted into base 6, 8 and 9 respectively.
36₆ = 100---------------------------------------------- (1)
64₈ = 100----------------------------------------------(2)
81₉ = 100------------------------------------------------(3)
From 1 to 3, it is clear that the two distinct numbers are 1 & 0,
△ = 1
□ = 0
△□□ = 100