Answer:
Using the formula MA = load/effort
From left to right,
1st case : MA = load/effort = 5/5 = 1
2nd case: MA = load/effort = 5/2.5 = 2
3rd case: MA = load/effort = 5/1.67 = 3
4th case: MA = load/effort = 5/1.25 = 4
Hope this helps!
:)
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