Question 1106920
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A number that is 1 less than a multiple of 5 has final digit 4 or 9.<br>
No prime numbers have final digit 4, so the numbers we are looking for have final digit 9.<br>
Prime numbers less than 100 with final digit 9 are 19, 29, 59, 79, and 89.<br>
Of those, the ones that are 1 more than a multiple of 4 are 29 and 89.<br>
The sum of those is 29+89 = 118.