Question

Mei-Ling from Singapore was preparing to go to South Africa for 3 months as an exchange student. She
needed to change some Singapore dollars (SGD) into South African rand (ZAR).
Question 1:
Mei-Ling found out that the exchange rate between Singapore dollars and South African rand was: 1 SGD =
4.2 ZAR Mei-Ling changed 3000 Singapore dollars into South African rand at this exchange rate. How much
money in South African rand did Mei-Ling get?
Question 2:
On returning to Singapore after 3 months, Mei-Ling had 3 900 ZAR left. She changed this back to Singapore
dollars, noting that the exchange rate had changed to: 1 SGD = 4.0 ZAR How much money in Singapore
dollars did Mei-Ling get?​

Answer 1

Answer:

1) 1 SGD = 10.66 ZAR

= 3000 SGD = 10.66 X 3000 = 31980

2) 1 SGD = 10.25 ZAR

=3900 ZAR =10.25÷3900

= 380 SGD

hence : he left only 380 SGD

Answer 2

Given :  Mei-Ling found out that the exchange rate between Singapore dollars and South African rand was: 1 SGD = 10.66 ZAR  

Mei-Ling changed 3000 Singapore dollars into South African rand at this exchange rate

On returning to Singapore after 3 months, Mei-Ling had 3 900 ZAR left. She changed this back to Singapore dollars, noting that the exchange rate had changed to: 1 SGD = 10.25 ZAR  

To Find : How much money in South African rand did Mei-Ling get?

How much money in Singapore dollars did Mei-Ling get?

Was it in Mei-Ling’s favour that the exchange rate now was 10.25 ZAR instead of 10.66 ZAR,

Solution:

Singapore dollars (SGD) into South African rand (ZAR).

1 SGD = 10.66 ZAR  

Mei-Ling changed 3000 Singapore dollars into South African rand at this exchange rate.

3000 SGD = 3000 * 10.66 = 31,980   ZAR  

Mei-Ling had 3 900 ZAR left.

1 SGD = 10.25 ZAR

=>  3 900 ZAR  =  3900/10.25  = 380.49 SGD

the exchange rate had changed from 10.66 to 10.25 ZAR per SGD.

it  was in favour of Mei-Ling

as for 1 SGD  she got = 10.66 ZAR

and for 10.66 ZAR she got 10.66/10.25  =  1.04SGD

1 SGD became 1.04SGD

Learn More:

The first column is labeled Currency and entries Canadian dollar, Euro, Japanese yen, Indian rupee

brainly.in/question/13220337

If the Canadian dollar buys 82c in US currency, what would it cost in ...

https://brainly.in/question/16354795