Question

according to this triple - beam balance the correct measurement is a 194.4g b 190.4g c 194.0g d 190.2g

Explanation:

Step1: Identify the values on each beam

The top beam might be in 1 - 10 g increments, the middle beam in 100 - 500 g increments, and the bottom beam in 0 - 10 g increments. Assume the middle beam reads 100 g, the bottom beam reads 90 g, and the top beam reads 4.4 g (if the smallest division is 0.1 g).

Step2: Calculate the total mass

Total mass = 100 g+90 g + 4.4 g=194.4 g

Answer:

A. 194.4 g