Bags of sugar

After I had used 1/5 of a bag of sugar and then used 1/4 of what was left, I had 60 g of sugar remaining. How much did I start with?

Final Answer:

a =  100 g

Step-by-step explanation:

c=60 g  r2=141=41 441=4441=441=43=0.75  b r2 = c b=c/r2=60/43=60:43=60 34=360 4=3240=80 g  r1=151=51 551=5551=551=54=0.8 a r1 = b  a=b/r1=80/54=80:54=80 45=480 5=4400=100 g



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