A taxidriver filled his car petrol tank with 40 litres of petrol on Mo – InterviewSolution

1.	A taxidriver filled his car petrol tank with 40 litres of petrol on Monday. The next day, he filled the tank with 50 litres of petrol. If the petrol costs* 44 per litre, how much did he spend in all on petrol?
Answer» filled on MONDAY = 40 litersPetrol filled on next day = 50 litersTotal PETROL filled = 90 litersNow, Cost of 1 liter petrol = Rs. 44Cost of 90 liters petrol = 44 x 90= 44 x (100 – 10)= 44 x 100 – 44 X10= 4400 – 440= Rs. 3960Therefore, he spent Rs. 3960 on petrol.

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