Profit on white cement = Rs +8
Loss on grey cement = Rs -5
∴ Profit on 1 bag of white cement = Rs 8
Profit on 3,000 bags of white cement = Rs 8 × 3000 = Rs 24,000
Loss on 1 bag cement = Rs -5
Loss on 5000 bags grey cement = Rs -5 × 5000
= Rs -25000
Total profit / loss = Total profit + Total loss
= 24000 + (-2500) = 24000 – 25000
∴ Total loss = -1000