JAMB - Mathematics (1984 - No. 11)
A trader in country where their currency 'MONI'(M) is in base five bought 1035 oranges at M145 each. If he sold the oranges at M245 each, what will be his gain?
1035
10305
1025
20025
30325
解释
Total cost of 1035 oranges at N145 each
= 1035 x 145
= 20025
Total selling price at N245 each
= (103)5 x 245
= 30325
Hence his gain = 30325 - 20025
= 10305
= 1035 x 145
= 20025
Total selling price at N245 each
= (103)5 x 245
= 30325
Hence his gain = 30325 - 20025
= 10305