 
 <translate> My question is: A school does a yearly tree planting activity. This year, the 4th graders planted a total of 30 trees while 5th graders planted twice as many. The 6th graders planted 30 fewer than thrice the number of trees planted by the 5th graders. How many trees did they plant altogether? Your thoughts: <ibo> Ajụjụ m bụ: Otu ụlọ akwụkwọ na-eme mmemme ịkụ osisi kwa afọ. N'afọ a, ụmụ klas nke anọ kụrụ osisi iri atọ ebe ụmụ klas nke ise kụrụ okpukpu abụọ. Ụmụ klas nke isii kụrụ osisi dị okpukpu atọ karịa nke ụmụ klas nke ise kụrụ. Osisi ole ka ha kụrụ n'ozuzu? Ihe i chere: 