174/4=43.5

Dividend: 43.5*3= 130.5

Uncle Zhang keeps 332 chickens and ducks. He sold half the chickens and bought 34 ducks. At this time, the number of chickens and ducks is just equal. How many ducks does Uncle Zhang keep?

Think of chicken as twice as much.

The original number of chickens

: (332+34)/( 1+0.5)=244.

Number of original ducks: 332-224=88.

3. Three steel plates * * * weigh 207kg, the first one is three times as much as the second one, and the second one is twice as much as the third one. How many kilograms are there in each of the three steel plates?

The third piece: it's twice as much.

The second piece: it's twice as much.

The first block: 3*2=6 times the amount.

Block 1: 207/( 1+2+6) = 23kg.

The second block: 23 * 2 = 46kg.

The third block: 23 * 6 = 138kg.

4. The sum of the minuend, the subtrahend and the difference in a subtraction formula is 482, and the known subtrahend is twice the difference, 1. How many kinds of subtractive sums and differences are there?

Negative = negative+difference

482/2=24 1

Subtraction = twice the difference+1

Difference = (241-1)/(2+1) = 80.

Subtraction = 80 * 2+1=161.