请教一道数学题

Eric.SongUID: 2963738

大白本练习题7里Section 2的29题：if 72.42=k(24+n/100), where k and n are positive integers and n < 100, then k+n=
A 17 B 16 C 15 D 14 E 13

jyf2618269UID: 2930382

24k=72 therefore k=3, 0.0n*3=0.42, therefore n=14, n+k=17, A is the correct answer