Shared 2 years ago
50 views
Shared 2 years ago
6 views
Shared 2 years ago
15 views
Shared 2 years ago
893 views
A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?#timeanddistance
Shared 2 years ago
528 views
Shared 2 years ago
62 views