Answer:
(a) Musa wants to buy a bank draft for $427. Since $1 = 2 Naira, the cost of the bank draft in Naira will be:
$427 x 2 Naira/$1 = 854 Naira
The commission charged by the bank is 34 Naira on each bank draft, so the total amount in Naira that Musa will pay the bank will be:
854 Naira + 34 Naira = 888 Naira
Therefore, Musa will pay the bank a total of 888 Naira for the bank draft.
(b) Musa wants to buy a bank draft for £335. Since £1 = 15 Naira, the cost of the bank draft in Naira will be:
£335 x 15 Naira/£1 = 5,025 Naira
The commission charged by the bank is 34 Naira on each bank draft, so the total amount in Naira that Musa will pay the bank will be:
5,025 Naira + 34 Naira = 5,059 Naira
Therefore, Musa will pay the bank a total of 5,059 Naira for the bank draft.