Respuesta :
Answer: b. 2.5 years
Step-by-step explanation:
The formula for Interest is:
= principal Ă— rate Ă— time
Then, we slot in the values given which will be:
Interest = principal Ă— rate Ă— time
50 = 1000 Ă— 2% Ă— Time
50 = 1000 Ă— 0.02 Ă— Time
50 = 20 Ă— Time
Time = 50/20
Time = 2.5 years
He has 2.5 years to pay back