# Word problem 4_

**Problem 4: A manufacturer sales a product to a whole sale dealer at 20% profit. The whole sale dealer sales the product to a retailer at 15% profit. The retailer sales the product to a customer in Rs 897 with 30% profit. What is the making cost of the manufacturer?**

**Solution: **

**Manufacturer**

Let’s suppose cost price of manufacturer is ‘x’

i-e

It is given that manufacturer’s profit is 20% of cost price;

i-e

or

Now using formula for sale price;

**Whole Sale Dealer**

Now this will become CP for whole sale dealer ;

now wsd will earn 15% profit on his this CP;

i-e

Again using formula for SP (for whole sale dealer);

**Retailer**

Now this SP of whole sale dealer will become CP of retailer;

Retailer earns 30% profit on this CP;

Now again for sale price use;

But given in question;

So CP of manufacturer is 500 Rs.