from the figure
number of manufacturing industry workers who were unemployed for 5 to 10 weeks=20% of 10 million =2 million
number of service industry workers who were unemployed for 5 to 10 weeks =16% of 8 million =1.28 million
ratio =2/1.28=1.5625 close to 1.5 (3 to 2)
option C is correct
_________________
thank you
gajala
"If you like my explanation please click kudos"
Thank you for 100 kudos
for more quant problems here is the link
https://greprepclub.com/forum/gre-math-book-for-the-gre-exam-2609.html