Jane, Andre and Maria Picked Apple.
Let Jane = J – picked 2 times as many pounds as Andre
Andre = A – picked 3x as many times as maria
And Maria = M – picked 3 lesser than Andre
J = 2(A) = 2 (252) =504
A = 3(m) = 252
M = A / 3 = 252 / 3 = 84
Total Weight = 840 pounds
=> J + A + M = 840 pounds
=>a + (a/ 3) + 2a = 840
=> 3a + a + 6a = 2 520, this is multiplied by 3.
=> 10a = 2 520
=> a = 252