A taxi driver filled his car petrol tank with 45 litres of petrol on Monday. The next day he filled his tank with 35 litres of petrol. If petrol cost Rs44 per litre, How much did he spend on petrol? (Use suitable property).

A taxi driver filled his car petrol tank with 45 litres of petrol on M

1.	A taxi driver filled his car petrol tank with 45 litres of petrol on Monday. The next day he filled his tank with 35 litres of petrol. If petrol cost Rs44 per litre, How much did he spend on petrol? (Use suitable property).
Answer» -STEP EXPLANATION:Petrol 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.