Peter is trying to work out by completing sit-ups and push-ups in order to gain muscle mass. Originally, Peter was completing five sit-ups for every three push-ups, but then he injured his shoulder. After the injury, Peter completed the same number of repetitions as he did before his injury, but he completed seven sit-ups for every one push-up. During a training session after his injury, Peter completed eight push-ups. How many push-ups was Peter completing before his injury?

Question

Kayleigh Keith

Mathematics

21 October, 04:55

Peter is trying to work out by completing sit-ups and push-ups in order to gain muscle mass. Originally, Peter was completing five sit-ups for every three push-ups, but then he injured his shoulder. After the injury, Peter completed the same number of repetitions as he did before his injury, but he completed seven sit-ups for every one push-up. During a training session after his injury, Peter completed eight push-ups. How many push-ups was Peter completing before his injury?

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Answers (1)

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Dakota Galvan · Answer 1

24 push - ups

Step-by-step explanation:

before injury the sit-up to push-up ratio was 5:3

after the injury the sit-up to push-up ratio is 7:1

now it is given that after his injury, Peter completed eight push-ups and he completed the same number of repetitions as he did before his injury

now eqauting the ratio 1 = 8

therefore 3 = 3*8 = 24

so, peter did 24 push-ups after his injury