Three subjects Geography, Science and English in the library are in the ratio of 5:7:8 which they had increased by 20%,40% and 50%. Find the ratio of increased books

# Please guys can you assist me this question#

(5*1.2):(7*1.4):(8*1.5) = 6:9.8:12

or, 60:98:120 = 30:49:60