How we can find the value

A Thai baht bond with a coupon of 9.5% is initially priced at its face value of Bt 1,000. At the end of one year, the bond is selling for Bt 1, 050. If the initial spot rate was Bt 25 = $1, at what end-of-year exchange rate will the dollar return on the bond just equal 10%? a) Bt 1 = $0.0384 b) Bt 1 = $0.0416 c) Bt 1 = $0.0482 d) Bt 1 = $0.0324