Question

30 percent of 1 number is 12.9 so how many numbers

Answer 1

Let the number be 'X'

So, (30/100) × X =12.9

X = 12.9×100/30

=43

Answer 2

let the number be A,

then

30% of A =12.9,

30/100 × A =12.9,

then

A =12.9 × 100/30,

A=43