To find the cost of 3 dozen eggs when 30 dozen eggs cost 900, we can use the concept of proportionality. Here's the step-by-step solution:
1. **Determine the cost of one dozen eggs**:
- Given that 30 dozen eggs cost 900.
- Cost per dozen = Total cost / Number of dozens
Cost per dozen =900/30=30units(currency)
2. **Calculate the cost of 3 dozen eggs**:
- If one dozen eggs cost 30 units, then the cost of 3 dozen eggs can be found by multiplying the cost per dozen by 3.
Cost of 3 dozen eggs=3 in 30=90units (currency)
Therefore, the cost of 3 dozen eggs is 90 units.
