Be wary of push ups with the way your shoulders habitually situate themselves relative to a more optimal alignment. If you do lots of push-ups your likelihood of shoulder niggles and shoulder pain will correspondingly increase. Do the bare minimum you need to to pass whatever entry tests you have in mind. Only once you've seen someone with the ability to correctly advise you how to improve your technique can you train per se with push ups (or bench press, or chest press - and never ever do seated pec dec exercise!).
Yeah I'm always wary of push ups because I've frequently in the past gotten those shoulder issues from doing them too much so no more than twice a week for the buildup. I only need 15 so doing three reps of what their training plan says is stupid (police force only requires ten and I can do that). Shoulders are fine but 'tired' right now so I think I did okay. Tomorrow might be a different story.
Purchase some issues of various pretty-people magazines such as "Women's Health," "Men's Health," "Shape," etc. etc. They will have a lot of strength routines that rely only on dumbbellls; generally all good basic stuff. Rip out those sections for reference and throw the rest of the magazine away. Or google "Dumbbell workouts" = tons of results.
And tons of bad technique shite too.
Women's Health Mag is Da Bomb!!
Not worried about the beep test for the adf? 7.5!
Yeah I might struggle.
45 sit ups I might need to train for though.