Answer:
7.74%
Explanation:
Present spot exchange rate = $0.002896
1-year forward rate = $0.002774
Yield on 1 year US Bill = 3.2%
Let Yield on 1 year Nigerian bill be 'R'
Now by the interest rate parity equation,
Forward rate = spot rate *( 1+ yield on US bill) /(1+ yield on Nigerian Bill)
$0.002774 = $0.002896 * (1.032/1+R )
(1+R) = 0.002896*1.032 / 0.002774
(1+R) = 1.0774
R = 1.0774 - 1
R = 0.0774
R = 7.74%