analysis: if the price of each children's wear is reduced by X yuan, the profit of each piece after taking measures will be (41-x) yuan. Since the price of each children's wear is reduced by 4 yuan, eight more pieces can be sold every day on average, so the number of pieces sold every day is (21+2x), and the profit is 1,211 yuan every day after taking measures, thus the equation is listed.

Solution: Let the price of each children's wear be reduced by X yuan.

∵ If the price of each piece of children's clothing is reduced by 4 yuan, then eight more pieces can be sold every day on average.

∴ The number of pieces sold every day is (21+2x),

The equation can be obtained as (41-x) (21+2x) = 1211.

X? -31x+211=1,

x1=11, x2=21,

X = 21 because of the need to reduce inventory.

A: Every piece of children's clothing should be reduced in price in 21 yuan.