To find David's yearly salary at his old job, we need to divide his monthly salary at his new job by the number of times he was earning at his old job.
Yearly salary at old job = Monthly salary at new job / Number of times he was earning at old job
Number of times he was earning at old job = 5
Monthly salary at new job = $2,400
Yearly salary at old job = $2,400 / 5 = $<<2400/5=480>>480
Therefore, David's yearly salary at his old job was $480.
David found a new part-time job that pays $2,400 a month. This is five times what he made at his previous job. What was David's yearly salary at his old job
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