Suppose a * * candy contains 45% known toffees and the number of toffees is 45% X. If you add 16 pieces of fruit candy, then * * candy contains X+ 16, toffees account for 25% of all the sugar and the number of toffees is 25% (x+/kloc-

or

(25× 16)÷(45-25)

=400÷20

=20

45%×20=9

It used to be 9 pieces of toffee, and I hope to adopt ~ ~ ~ ~ ~ ~ ~ ~ It used to be 74 pieces, but now it's 90 pieces.