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Identify the amount to be converted and the exchange rate.

May 22, 2026Economics

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Answer

\text{40 USD}

3 steps

Identify the amount to be converted and the exchange rate.
The cost is K150, and the exchange rate is 1 USD = K3.80.
Convert Kina to USD.
To find out how many USD K150 is worth, divide the Kina amount by the exchange rate.
$\text{USD} = \frac{\text{Kina amount}}{\text{Exchange rate}}$ $\text{USD} = \frac{150}{3.80}$ $\text{USD} \approx 39.47368...$
Round up to the nearest whole dollar.
Since the tourist needs to cover the bill, and the calculated amount is $39.47, rounding up to the nearest whole dollar means the tourist must provide$ 40.
$\text{Rounded USD} = \lceil 39.47368... \rceil = 40$
The tourist needs to give:
$\boxed{\text{40 USD}}$

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