Question

owens finds a rock that has some gold in it . The rock has mass of 125 grams . He removed the gold, which is 18% of the mass of the rock. How much gold does he have ?

Answer 1

owens finds a rock that has some gold in it . The rock has mass of 125 grams . He removed the gold, which is 18% of the mass of the rock. How much gold does he have ?​

Remember that

18%=18/100=0.18

so

Multiply the total weight by the factor 0.18

125*(0.18)=22.5 grams

answer is 22.5 gr