200 mangoes at 4 for N2.50
implies Total cost price = 2004×N2.50
= N 125.00
Since 30 mangoes got spoilt implies Left over = 200 - 30
= 170 mangoes
170 mangoes at 2 for N 2.40
implies Total selling point = 1702×N2.40
= N 204.00
Profit : N (204.00 - 125.00) = N 79.00
% profit = 79125×100%
= 63.2% profit.
