Thank you for the opportunity to help you with your question!

total points = 52

total ribbons = 24

1st place ribbons = 6

1st place points = 30

let the no. of second place ribbons be x.

so points = 3x

and the no. of third place ribbons = (24 - 5- x) = (19-x)

so points = (19-x)

now total points = 30 + 3x + (19-x) = 53

on solving we get x= 2

so the no. of 3rd [lace ribbons were 19- 2 = 17

Please let me know if you need any clarification for the doubts. I'm always happy to answer your questions. Looking forward to help you again. thank you. :)

Please
let me know if you need any clarification for the doubts. I'm always
happy to answer your questions. Looking forward to help you again. thank
you. :)