A car uses 1 liter of petrol to travel 17 miles. After a tune-up, the car travels 17% further on one liter. How many liters (best appx.) of petrol will it take for the car to travel 170 miles after a tune-up?
সমাধান
সঠিক উত্তর: Option D
After a tuneup the car travels=17+17/100x17=19.89 miles
19.89 miles take 1 liter petrol
170 miles take 170/19.89=8.5 liter