Question 15
Betty and Bobby exchange numbers using a special secret method. They encode digits according to the following table. Here ○ is a white circle and ● is a gray circle.
| Digit | Code | Digit | Code | Digit | Code | Digit | Code | Digit | Code |
|---:|---|---:|---|---:|---|---:|---|---:|---|
| 0 | ●○●○ | 1 | ●○● | 2 | ○●○○ | 3 | ○●●● | 4 | ○●● |
| 5 | ○○●○ | 6 | ○○○ | 7 | ○○○● | 8 | ●○○● | 9 | ○●○● |
To write 232 they can send this picture:
Which number could the following picture represent?
| Digit | Code | Digit | Code | Digit | Code | Digit | Code | Digit | Code |
|---:|---|---:|---|---:|---|---:|---|---:|---|
| 0 | ●○●○ | 1 | ●○● | 2 | ○●○○ | 3 | ○●●● | 4 | ○●● |
| 5 | ○○●○ | 6 | ○○○ | 7 | ○○○● | 8 | ●○○● | 9 | ○●○● |
To write 232 they can send this picture:
Which number could the following picture represent?