What is the difference between the largest possible value of Kim’s number and the smallest possible value of Jamie’s number?

Kim and Jamie each think of a different whole number that is greater than zero and less than 50. Kim’s number is a multiple of 5. Jamie’s number is an even number which is a multiple of 7.

What is the difference between the largest possible value of Kim’s number and the smallest possible value of Jamie’s number?

31 36 38 39 43

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What is the difference between the largest possible value of Kim’s number and the smallest possible value of Jamie’s number?