Correct Answer - Option 4 : 50 km
Given:
20 km distance cover by with 1-litre petrol
Calculation:
2500 ml = 2.5 liter
1-litre petrol → 20 km
⇒ 2.5 litre petrol → 20 × 2.5
⇒ 2.5-litre petrol → 50 km
∴ The distance cover with the 2500 ml petrol is 50 km