Correct Answer - Option 1 :
Rs. 120
Given:
Price of petrol = Rs. 100 per liter
The distance covered by bike in 1 liter = 30 km
Calculation:
Petrol consumption to cover 180 km distance = 180/30
Petrol consumption to cover 180 km distance = 6 litre
1 litre petrol price = Rs. 100
6 litre petrol price = Rs. 600
⇒ Increased price of petrol per litre = 100 × 120%
⇒ Increased price of petrol per litre = 100 × (120/100)
⇒ Increased price of petrol per litre = Rs. 120
⇒ 6 litre petrol price = 6 × 120
⇒ 6 litre petrol price = Rs. 720
⇒ Difference between money to cover a same distance = 720 – 600 = 120
∴ Rs. 120 spend more to cover a same distance.