A company needs to produce 340 litres of Chemical X. There is a normal loss of 10% of the material input into the process. During a given month the company did produce 340 litres of good production, although there was an abnormal loss of 5% of the material input into the process.How many litres of material were input into the process during the month?
A、357 litres
B、374 litres
C、391 litres
D、400 litres
A、357 litres
B、374 litres
C、391 litres
D、400 litres
【参考答案及解析】
The total loss was 15% of the material input.The 340 litres of good output therefore represents 85% of the total material input.Therefore, material input = 340/0.85= 400 litres
The total loss was 15% of the material input.The 340 litres of good output therefore represents 85% of the total material input.Therefore, material input = 340/0.85= 400 litres