# Class 6 Maths- Exercise 2.2-Question 05 to 07

(5) A taxi driver filled his car petrol tank with 40 liters of petrol on Monday. The next day, he filled the tank with 50 liters of petrol. If the petrol costs Rs. 44 per liter, how much did he spends in all on petrol?

Sol.
According to the question,

Cost of 1 liter of petrol                                                                          =  Rs. 44

Petrol filled on Monday                                                                        = 40 liters

Cost of 40 liters of petrol                                                                      = 40 x 44

Petrol filled on Tuesday                                                                       = 50 liters

Cost of 40 liters of petrol                                                                       = 50 x 44

Total money spent on petrol on both days (Monday + Tuesday)          = 44 x 40 + 44 x 50

= 44 x (40 + 50)         …………..taking 44 as common
= 44 x 90
= 44 x 9 x 10

= 396 x 10
= 3960
Therefore, total Rs. 3960 is spent on petrol on both the days.