A man on tour travels first 160 km at 64 km/hr and the next 160 km at 64 `"km"//"hr"`. The average speed for 320 km of the tour is:

Answer

To find the average speed of the man on his tour, we can follow these steps:

### Step 1: Identify the distances and speeds
The man travels two segments of the journey:
- First segment: 160 km at a speed of 64 km/hr
- Second segment: 160 km at a speed of 64 km/hr

### Step 2: Calculate the total distance
The total distance traveled is:
\[ \text{Total Distance} = 160 \text{ km} + 160 \text{ km} = 320 \text{ km} \]

### Step 3: Calculate the time taken for each segment
Using the formula for time, which is:
\[ \text{Time} = \frac{\text{Distance}}{\text{Speed}} \]

**For the first segment:**
\[ \text{Time}_1 = \frac{160 \text{ km}}{64 \text{ km/hr}} = 2.5 \text{ hours} \]

**For the second segment:**
\[ \text{Time}_2 = \frac{160 \text{ km}}{64 \text{ km/hr}} = 2.5 \text{ hours} \]

### Step 4: Calculate the total time taken
The total time taken for the journey is:
\[ \text{Total Time} = \text{Time}_1 + \text{Time}_2 = 2.5 \text{ hours} + 2.5 \text{ hours} = 5 \text{ hours} \]

### Step 5: Calculate the average speed
The average speed is given by the formula:
\[ \text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}} \]
Substituting the values we found:
\[ \text{Average Speed} = \frac{320 \text{ km}}{5 \text{ hours}} = 64 \text{ km/hr} \]

### Final Answer
The average speed for the 320 km tour is:
\[ \text{Average Speed} = 64 \text{ km/hr} \]

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