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Economics [Question] How do they work

Field MarshalIllinoisRegistered User regular
Spoiler:

Edit : Thread is being updated for another math related question.

I've got three questions relating to Reserve Ratios and I've tried doing the math, but I'm screwing it up bad. Here are the three questions on my study guide.
Spoiler:

I already know the answers are D A A in that order. How to get these answers is what I don't know. For #5 I tried doing .10 X 1000, and ended up getting 100. I subtracted 100 from 250 and chose the wrong answer. For the other two I tried backtracking to my notes and scribbled a few random equations out and got nothing. The most I recall is there's a step involving 1 / 1/P (P being interest?), but got lost in the translation. Can I get assistance in doing these three? Its three easy points that I don't want to lose on the test.

Waffen on

Posts

• Registered User regular
GDP deflator = nominal GDP/real GDPx100

so 500/800 = 5/8 =.625

*100 = 62.5

edit: be careful which is ontop. if you switch the formula to real/nominal, you'll get B as the answer.

Mental midgets kill my inner child.
• Registered User regular
Think of the deflator as

<100% if the price of stuff has gone down with time
and
>100% if the price of stuff has gone up with time.

parabol
• Field Marshal IllinoisRegistered User regular
Updated OP.