they all swore to tell the truth, the whole truth, and nothing but the truth. unfortunately only 4/5 did. if that 4/5 amounted to 128 people, how many took the truth pledge in total?

Answer 1

If 4/5 of the people equals 128, it means that each fraction represents 128 ÷ 4 = <<128/4=32>>32 people.
Since the fraction represents 4/5, the total number of people who took the truth pledge is 32 x 5 = <<32*5=160>>160. Answer: \boxed{160}.