200:(48:t)•45=20

Assuming ":" denotes division (i.e., 48:t means 48 ÷ t), the equation reads: 200 ÷ (48 ÷ t) × 45 = 20

Compute:

• 200 ÷ (48 ÷ t) = 200 × (t/48) = (200t)/48
• Multiply by 45: ((200t)/48) × 45 = (9000/48) t = (375/2) t

Set equal to 20: (375/2) t = 20 t = 20 × (2/375) = 40/375 = 8/75

Answer: t = 8/75

If you intended a different interpretation (e.g., a ratio notation), let me know and I’ll adjust the solution.