Question

37 pumpkins each weighs 48 ounces

Answer 1

37 * 48 = 3 * (c  - 140 )+ 2 *(c  - 140 ) + ( c - 140 ) =>
37 * 48 = 6 * ( c - 140 ) =>
37 * 48 / 6 = c - 140 =>
37 * 8 = c - 140 =>
296 = c - 140 => 
c = 296 + 140 =>
c = 436 ounces.