(1) 3 / 5 of a pile of stones is 8 tons more than 1 / 2 of it. How many tons are there in total? (2) a batch of steel frames, 1 / 4 of the total number transported for the first time (1) Three fifths of a pile of stones is 8 tons more than one-half of it. How many tons are there in all? (2) For a batch of steel frames, 1 / 4 of the total number is removed in the first time, the remaining 2 / 1 is removed in the second time, and () of the total number is left (3) In order to celebrate the national day, the students folded paper cranes to decorate the classroom. Xiaoli folded 30 paper cranes. If one out of 30 paper cranes folded by Xiaoli is given to Xiaodong, the number of paper cranes folded by two people is equal. How many paper cranes are folded by two people? (4) There are 100 basketball and football in the school. One third of basketball is 16 more than one tenth of football. How many basketball and football are there?

(1) 3 / 5 of a pile of stones is 8 tons more than 1 / 2 of it. How many tons are there in total? (2) a batch of steel frames, 1 / 4 of the total number transported for the first time (1) Three fifths of a pile of stones is 8 tons more than one-half of it. How many tons are there in all? (2) For a batch of steel frames, 1 / 4 of the total number is removed in the first time, the remaining 2 / 1 is removed in the second time, and () of the total number is left (3) In order to celebrate the national day, the students folded paper cranes to decorate the classroom. Xiaoli folded 30 paper cranes. If one out of 30 paper cranes folded by Xiaoli is given to Xiaodong, the number of paper cranes folded by two people is equal. How many paper cranes are folded by two people? (4) There are 100 basketball and football in the school. One third of basketball is 16 more than one tenth of football. How many basketball and football are there?

Let x ton 3-5x-1-2x = 8
（1-1×1\4）×1\2
Let x X-30 + 3 = 30-3
Basketball x x × 1 / 3-16 = (100-x) × 1 / 10