Library 81232

Lenka has 30% fewer books in her library than Filip but 40% more than Ivan. Filip has 250 books. How many books does Ivan have?

Correct answer:

I =  125

Step-by-step explanation:

F=250 r1=100%30%=110030=0.7 r2=100%+40%=1+10040=1.4  L=r1 F=0.7 250=175 L=r2 I  I=L/r2=175/1.4=125

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