Question

A factory produces three types of products, X, Y, and Z. The average production of product X over 5 days is 120 units per day. The average production of product Y over the same period is 150 units per day. If the total average production of all three products over these 5 days is 450 units per day, what is the average production of product Z over these 5 days?

A 125
B 180
C 175
D 185
E 145
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