Mr Noah bought 24 boxes of oranges. There were 78 oranges in a box. He sold 1422 of the oranges and gave two ninths of the remaining oranges to his friends.

Question

how many oranges had he left?

 

explanation and working out please.

Answer 1

24 boxes of 78

24(78) = 1872 oranges to begin

 

1872 - 1422 = 450 left 

 

450 - (2/9)(450) = (7/9)(450) = 350 oranges final.

Answer 2

24  x 78 = 1872

 

1872 - 1422 = 450

 

Gave away 2/9 of the remaining means he has 7/9 remaining

 

7/9 x 450 = 7*450/9 = 7*50 = 350