Adi and Dia together have ₹1,440. If $\frac{3}{10}$ of Adi's amount is equal to $\frac{3}{5}$ of Dia's amount, how much amount does Dia have?

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**Solution:**

1. Let Adi's amount be $A$ and Dia's amount be $D$.

2. Given that together they have ₹1,440:
   $$A + D = 1440 \quad 	ext{(1)}$$

3. Given:
   $$\frac{3}{10} 	imes A = \frac{3}{5} 	imes D$$

4. Simplify the equation:
   $$\frac{3}{10} A = \frac{3}{5} D \implies A = 2D$$

5. Substitute $A = 2D$ into equation (1):
   $$2D + D = 1440$$
   $$3D = 1440$$

6. Solve for $D$:
   $$D = \frac{1440}{3} = 480$$

**Answer:** ₹480

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