Question 3
Between 1986 and 1989, our country's currency was the Cruzado ($\mathrm{Cz\ \$}$). Since then, we have had the Cruzado Nova, Cruzeiro, Cruzeiro Novo and, today, we have the Real. To compare values from the time of the Cruzado and today, economists calculated that 1 real is equivalent to 2,750,000,000 Cruzados.
Imagine that the currency had not changed and that João, who currently earns 640 reais per month, had to receive his salary in 1-cruz notes each. If a stack of 100 1-cross notes is $1{,}5\ \mathrm{~cm}$ high, how tall would João's salary be?
A) $26{,}4\ \mathrm{~km}$
B) $264\ \mathrm{~km}$
C) $26400\ \mathrm{~km}$
D) $264000\ \mathrm{~km}$
E) $2640000\ \mathrm{~km}$
Imagine that the currency had not changed and that João, who currently earns 640 reais per month, had to receive his salary in 1-cruz notes each. If a stack of 100 1-cross notes is $1{,}5\ \mathrm{~cm}$ high, how tall would João's salary be?
A) $26{,}4\ \mathrm{~km}$
B) $264\ \mathrm{~km}$
C) $26400\ \mathrm{~km}$
D) $264000\ \mathrm{~km}$
E) $2640000\ \mathrm{~km}$