Rate per unit Numerical Reasoning Question

Rate = quantity ÷ the units named (per hour, per worker…). Check which divisor the question asks for. The correct answer is 104. Traps to avoid: 1,040 comes from the "gave total" error; 95 comes from the "wrong divisor" error; 10 comes from the "inverted" error; 10,400 comes from the "multiplied" error.