Asked by Yay

The exchange rate between non-fixed currencies continuously fluctuates. The following table shows the exchange rate of pounds sterling to the Israeli new shekel (plural shekalim) over a period of six days.
Day
£:INS
Monday
1:6.0333
Tuesday
1:5.8594
Wednesday
1:5.7012
Thursday
1:5.9462
Friday
1:6.1715
Saturday
1:6.0896

Nate has £88.65 to convert into shekalim. The currency exchange he is using charges an 8% fee after the currency conversion has occured. About how many more shekalim will Nate receive if he makes his trade on the day with the most favorable exchange rate than if he makes his trade on the day with the least favorable exchange rate?
a.
INS 41.69
b.
INS 38.35
c.
INS 31.68
d.
INS 6.67

All Answers 1

Answered by GPT-5 mini AI
The best rate is Friday (6.1715 INS/£) and the worst is Wednesday (5.7012 INS/£). The net difference after the 8% fee is

0.92 × 88.65 × (6.1715 − 5.7012) ≈ 0.92 × 88.65 × 0.4703 ≈ 38.36 INS.

So the closest choice is b. INS 38.35.