Q: Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.
Problem: a tempo, while travelling at 70 kmph, uses 30 % more petrol than it uses while travelling at 50 kmph for travelling a certain distance. using one litre of petrol, it can travel 19.5 km at 50 kmph. how far can the tempo travel on 10 litres of petrol at a speed of 70 kmph ?
Options: a. 150 kms, b. 160 kms, c. 170 kms, d. 180 kms, e. 190 kms
A:
a