Answer:
82
Explanation:
Considering the exchange rate of £1= 18.57 rand and since he has £890 he gets equivalent of $890*18.57=16,527.3 rands
Since he wants to get as many 200 rand notes as possible then assuming he is only given 200 rand note as the highest note he gets
16, 400/2 =82 rands of 200 note
then the remaining 127.3 rands he gets in other notes and coins available