Cost price of 1 dozen oranges = C.P = Rs 40
∴ Cost price of 8 dozen oranges = Total C.P = Rs 40 × 8 = Rs 320
Selling price of 1 dozen oranges = S.P = Rs 35
∴ Selling price of 8 dozen oranges = Total S.P = Rs 35 × 8 = Rs 280
Since, Total C.P > Total S.P, a loss is incurred.
Loss = Total C.P ˗ Total S.P
= Rs 320 – Rs 280
= Rs 40