Answer: To earn a riskless profit, you will need $.05 per US dollar invested.
Step-by-step explanation:
First, I would Exchange $1 USD into New Zealand dollars, This would give me;
1.00 x 1.39 = $1.39 NZD. Then, I would Exchange NZD to British Pounds to give me
1.39 x .47 = £0.65. Lastly I would Exchange British Pound back to USD which would be
I USD= £0.62
Therefore £0.65 to dollar gives
= 0.65 x ($1/£.62) = $1.05 USD
Therefore my riskless profit becomes $.05because
$1.05 - $1.00 = $.05 per US dollar invested.