Question

if 75% of a number is 6 then what percent of the number is 1

Answer 1

Let the no. be x
75/100 x=6

x=(6x100)/75=8

Now,
Let percent be y
y/100x8=1
y=12.5

Answer 2

Let the no. be x.
$\frac{75}{100} \times x = 6 \\ x = \frac{600}{75} = 8$
Let y percent of 8 be 1.
$\frac{y}{100} \times 8 = 1 \\ y = \frac{100}{8} = 12.5$