I'm doing 4 sets of 25 bw push-ups and 4 sets of 40 bw squats
-----
Nothing intense just trying to build a bit of muscle
-----
Although once I get to the point where this becomes easy I will make it harder. Add more reps/sets, add weight, etc. one I do this I'd like to keep the same routine
If you're eating enough calories to be at a surplus, if you're consuming enough protein to rebuild your muscles as they breakdown from exercise, if your body is running optimally by reaching the RDA in Vitamins, Minerals, if you're staying hydrated, if you're sleeping and giving yourself enough time to recover between work outs, and if your exercise routine contains some type of progressive overload: you will gain muscle.
>Source, I'm a Kinesiologist.
An Example of Said Athlete
All I can afford to buy is ramen, I've been trying to not eat much of that. I eat everything they provide at school but no telling how healthy that is or what's in it. When they have fruit I try to grab a lot of it without getting caught. I eat maybe 3-4 fruits a day. I drink a lot of milk and water. I drink a coke about 3 times a week but I'm working on getting rid of soda completely.
Based on this would I be better off with a 5 day a week workout or 3 day? Or maybe something different?
I also have a trampoline (a real one, not one of the small workout ones) that I jump in for about 30 minutes a day with my little brother.
On another note, would it be better/worse/no difference to have different rest days for the push-ups and squats?