30 bags of gravel of 35 kg each cost रु 3150. Find the cost of 50 bags of 45 kg each.

Answer

To solve the problem step by step, we will follow the calculations as outlined in the video transcript.

### Step 1: Calculate the total weight of the gravel in 30 bags.
- Each bag weighs 35 kg and there are 30 bags.
- Total weight = Number of bags × Weight of each bag
- Total weight = 30 bags × 35 kg/bag = 1050 kg

### Step 2: Calculate the cost per kg of gravel.
- The total cost for 30 bags is given as रु 3150.
- Cost per kg = Total cost / Total weight
- Cost per kg = 3150 / 1050 = 3 रु per kg

### Step 3: Calculate the total weight of 50 bags of gravel.
- Each of the 50 bags weighs 45 kg.
- Total weight = Number of bags × Weight of each bag
- Total weight = 50 bags × 45 kg/bag = 2250 kg

### Step 4: Calculate the total cost for 50 bags of gravel.
- We know the cost per kg is 3 रु.
- Total cost = Total weight × Cost per kg
- Total cost = 2250 kg × 3 रु/kg = 6750 रु

### Final Answer:
The cost of 50 bags of 45 kg each is रु 6750.

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