Question

Aunt Sally won a lottery prize of $9,700 and decided to make a trip overseas. She spent SGD2,890 in Singapore, CNY10,500 in China, and JPY243,000 in Japan. The exchange rates were SGD1 = $0.7413, $1 = CNY7.0312, and $1 = JPY99.30. She donated the remaining money to an environmental organization when she returned to the US. How many dollars did Aunt Sally donate to the environmental organization?

		$4,021.29
		$3,858.60
		$3,617.17
		$3,418.15
		$3,266.39

Answer 1

Solution:

As per the information given in the question we have

Aunty sally won a lottery prize of = $ 9,700

Calculation of amount spent in Singapore in dollars:

She spent SGD 2,890 in Singapore

The exchange rates were SGD1 = $ 0.7413

Thus amount spent by sally in dollars is Singapore

= SGD 2,890 * $ 0.7413

= $ 2142.3570

Calculation of amount spent in China in dollars:

She spent CNY 10,500 in China

The exchange rates were $1 = CNY 7.0312

Thus amount spent by sally in dollars is China

= CNY 10,500 / CNY 7.0312

= $ 1,493.3440

Calculation of amount spent in Japan in dollars:

She spent JPY 243,000 in Japan

The exchange rates were $1 = JPY 99.30.

Thus amount spent by sally in dollars is China

= JPY 243,000 / JPY 99.30

= $ 2,447.1299

Thus the total amount spent by Sally in Dollars = $ 2,142.3570 + $ 1,493.3440 + $ 2,447.1299

= $ 6,082.8309

The amount donated by Aunt Sally to the environmental organization = Amount won in lottery prize - the total amount spent by Sally in Dollars

= $ 9,700 - $ 6,082.8309

= $ 3,617.1691

= $ 3,617.17 ( when rounded off to two decimal places )

Thus the solution is Option 3 = $ 3,617.17