Question

you have 125 grams of a certain season and are told that it contains 40 grams of salt what is the percentage of salt by mass and the seasoning?

Answer 1

$\frac{40g.of.salt}{125g.of.seasoning}= \frac{40}{125} =0.32 =$ 32%

Answer 2

Season = 125 g
Salt        =  40g
% Salt:              =  40 / 125 * 100%.    (25 into 125 is 5, and into 100 is 4)
                                                             (5 into 40 is 8) 
                         = 4 * 8
                         = 32%