Question

mary painted 5/12 of a wall white, 2/12 gray and the rest blue. What portion of the wall was blue ?

Answer 1

Portion which was not painted by blue

=(5/12)+(2/12)

=)7/12

portion painted by blue=(12/12)-7/12

portion painted by blue=5/12

Answer 2

She painted 5 / 12 of the wall as blue