i need the answer and explanation too. tq

11. SANGKAR KALA SDN BHD (5 MARKS) In the manufacturing of material A there is a normal loss of 20% of the material input into the process, 340 kgs of material A were manufactured in a period during which there was an abnormal loss of 10% of the material input into the process. How many kilos of material were input into the process during the period