The average height of 22 employees of an IT company is 164 cm. The average height of the first nine employees is 160 cm and the average height of the next ten employees is 170 cm. If the ratio of the height of 20th, 21st and 22nd employees is 41 : 31 : 45, then, find the height of 21st employee?
1
124
2
153
3
186
4
93
5
217