The line graph depicts the total quantities of items (P + Q) dispatched and the quantities of item Q dispatched from four warehouses (A, B, C, and D) during the month of March.
![image.png](https://res.cloudinary.com/aptidude/image/upload/v1757019582/aptidude_questions/yvwpovv1v6qmvbr1uudc.png)
Using the data, find the ratio of the total number of item P dispatched from warehouses D and A combined to that from warehouses B and C combined.

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**Solution:**

1. From the line graph, note down the total quantities of items (P + Q) dispatched from each warehouse (A, B, C, and D).

2. Also, note the quantities of item Q dispatched from each warehouse.

3. Calculate the quantity of item P dispatched from each warehouse by subtracting the quantity of Q from the total (P + Q):
   $$P = (P + Q) - Q$$

4. Find the sum of item P dispatched from warehouses D and A:
   $$P_D + P_A$$

5. Find the sum of item P dispatched from warehouses B and C:
   $$P_B + P_C$$

6. Finally, calculate the ratio:
   $$	ext{Ratio} = \frac{P_D + P_A}{P_B + P_C}$$

7. Simplify the ratio to its lowest terms.

**Answer:** The ratio of total item P dispatched from D and A together to that from B and C together is **29:16**.

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