please help me out! It has to be done before 12pm

Answer:
It should be 168 seconds
Step-by-step explanation:
840 divided by 5 is 168, let me know if I'm wrong!
Answer:
I think its 14
Step-by-step explanation: 12x5=60 so 60 instructions per second then they need 840 instructions so 840/60=14 so 14 seconds I THINK