Ag atharrachadh air ais gu airgead Breatannach
Airson atharrachadh air ais gu airgead Breatannach, bidh thu a' roinn leis an reat iomlaid.
\(\text{Airgead}\, \text{Breatannach} = \frac{{\text{airgead}\, \text{c猫in}}}{{\text{reat}\, \text{iomlaid}}}\)
Eisimpleir
Nuair a thill Dave 脿s an Eilbheis, bha \(55\) francan Eilbheiseach aige.
Dh'atharraich e na francan Eilbheiseach air ais gu airgead Breatannach, aig reat de \(拢1 = 2.32\) franc.
D猫 na fhuair e air ais?
Freagairt
'S e aon not \(2.32\) franc:
S霉im notaichean \( = \frac{{55}}{{2\cdot32}} = 23.70689\)
Feumaidh tu am freagairt a chruinneachadh gu 诲脿 ionad dheicheach.
Mar sin fhuair Dave \(\pounds23.71\) air ais.
Feuch a-nis a' cheist seo:
Question
Thill Heather 脿 Astr脿ilia le \(200\) dolair Astr脿ilianach.
Dh'atharraich i iad air ais gu airgead Breatannach nuair a bha an reat iomlaid aig \(\pounds1 = 2.82\) dolair.
D猫 fhuair i air ais?
'S e aon not \(2.82\) dolair Astr脿ilianach:
S霉im dholairean \(= \frac{{200}}{{2 \cdot 82}} = 70.92198\)
Feumaidh tu am freagairt a chruinneachadh gu 诲脿 ionad dheicheach.
Mar sin fhuair Heather \(\pounds70.92\) air ais.