Question

a petrol consumption for first three month is 88 liter and next 9 month is 152 liter
what is the average consupution for the whole year
how to solve

Answer 1

((88 x 3)+ ( 9 x 152)) / 12 =((264)+(1368))/12 =1632/12 = 136 liters. ∴136 liters is the average petrol used in the whole year.

Answer 2

Given that 3 months =88 9months =152 152+88=240 240\2=120