A driver of auto rickshaw makes a profit of 20% on every trip when he carries 3 passengers and the price of petrol is Rs. 30 a litre. Find the % profit for the same journey if he goes for 4 passengers per trip and the price of petrol reduces to Rs. 24 litres? (revenue per passenger is same)
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Step-by-step explanation:
When 3 passengers income was 3x
expense= Rs.30
profit =20% of 30= Rs.6
That means his earning is Rs.36
so that per passenger fare must be Rs.12.
When 4 passengers
earning =12×4=Rs.48.
expense =Rs.24.
profit = Rs.24=100%
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