Answer:
56 days
Step-by-step explanation:
3500 calories makes a pound
If he has to gain 80 pounds of pure muscle by eating 5000 calories a day.How long would that take?
3500 calories-->1 pound
?[how many calories]-->80 pounds
80*3500/1=280,000 calories
5000 calories-->1 Day
280,000 calories-->?[how many days]
280,000*1/5000-->280/5=56 days