There were 1372 million fewer barrels of crude oil produced in country a in 2009 than there were in country b. find the number of barrels of crude oil (in millions) produced in country b in 2009 if there were 216 million barrels produced in country a that year.

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.