Question 1206575
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1/4 of the remaining cards were issued to masons, so 3/4 of the remaining cards were issued to welders.<br>
Since 3/4 is 3 times as much as 1/4, the number of cards issued to welders was 3 times the number issued to masons.<br>
Then, since the number issued to welders was 15, the number issued to masons was 5.<br>
ANSWER: 5<br>
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Note there is no need for another tutor to belittle solutions shown by other tutors just because they didn't use the same method she did.<br>