Answer:
1.8×10¹⁸ or 1.8 quintillion
Explanation:
You want the number of additions a computer can do in 10 hours at the rate of 50 trillion per second.
Hour
Each hour is 3600 seconds, so the number of additions that can be done in 10 hours is ...
50×10¹² adds/s × 10 h × 3600 s/h = 1.8×10¹⁸ adds
The computer can do 1.8×10¹⁸, or 1.8 quintillion additions in 10 hours.
<95141404393>