1.

The ratio of the total number of engineers recruited by companies A and B in 2015 and 2018 to the total number of engineers recruited by C and D in 2014 and 2018, is:

A. 17 : 14
B. 13 : 21
C. 9 : 14
D. 28 : 19
Answer» B. 13 : 21


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