$1.$ In an exchange market, the following hypotheses are:$1$$$=32$Bath and Ruble $1=$ $$0\mathrm{.}02$Calculate how much Ruble is exchanged for $1$Bath? And how much does $1$Ruble exchange for Bath?$2.$ In an exchange market, the following hypotheses are:$1$$$=142(142/$$$)1$$$=1\mathrm{.}5$ DM $($DM $1\mathrm{.}5/$$$)$Calculate how much $1$ DM is equal to$?$ And $1$ DM is equal to how many DM$?3.$ In the three banks, the exchange rates are as follows:Bank A $82/$$Bank B $$1\mathrm{.}60/$EBank C $128/$In the case of arbitrary exchange of money, which bank do we exchange first in order to make a profit?$4.$ They have $240$ to convert to $,$ knowing that $1=1\mathrm{.}40.$a$.$ How much can they change?b$.$ If he has $65,$ how much can he exchange?c$.$ If $1=1\mathrm{.}30,$ if he exchanges $65,$ how much can he change?$5.$ Suppose you observe the following quotesIn London$$1\mathrm{.}5/$f $(1\mathrm{.}5$$ per $1)-$In New York $1\mathrm{.}2/$$ $(1\mathrm{.}2$ per $1$$$)-$ In Amsterdam $2\mathrm{.}0/(2\mathrm{.}0$ per $1)$How can make money if you were an American investor with $$1000$ to invest? Or if you were aBritish investor with $500?$