How many grams (g) of water must be evaporated from 300 grams (g) of 4% salt water to make 10% salt water?
300 300 4 100 [OP_DIV] [OP_MUL] 100 10 [OP_DIV] [OP_MUL] [OP_SUB]
var_a = 300
var_b = 300
var_c = 4
var_d = 100
var_e = var_c / var_d
var_f = var_b * var_e
var_g = 100
var_h = 10
var_i = var_g / var_h
var_j = var_f * var_i
var_k = var_a - var_j
print(int(var_k))