A cement company earns a profit of Rs 8 per bag of white cement sold and a loss of Rs 5 per bag of grey cement sold.
(a) The company sells 3,000 bags of white cement and 5,000 bags of grey cement in a month. What is its profit or loss?
(b) What is the number of white cement bags it must sell to have neither profit nor loss, if the number of grey bags sold is 6,400 bags

Explanation

To solve the problem step by step, we will break down each part of the question.

### Part (a): Calculate the profit or loss when selling white and grey cement.

1. **Identify the profit and loss per bag:**
- Profit on white cement = Rs 8 per bag
- Loss on grey cement = Rs 5 per bag

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