Correct Answer - Option 4 : 595 km
Given:
Average distance covered on Monday and Thursday = 110 km
Average distance covered on Tuesady, Wednesday, Friday, Saturday and Sunday = 75 km
Formula used∶
Average = Sum of all observation/Number of observation
Calculation∶
Distance travelled on Monday and Thursday = 110 × 2
⇒ 220 km
Distance travelled on Tuesday, Wednesday, Friday, Saturday and Sunday = 75 × 5
⇒ 375 km
Total distance travelled from Monday to Sunday = 220 + 375
⇒ 595 km
∴ The total distance travelled by Mr. R is 595 km.