The problem of eight balloons

1) Take out two balloons from eight balloons 2) Divide the remaining six balloons into two groups, with three balloons in each group 3) Put two groups (with three balloons in each group) on the left and right sides of the balance and weigh them 4)[ 1] If the balance is balanced, take out one of the two balloons that are wrongly inflated, and then weigh the two balloons to find out the one that is wrongly inflated [2]. If the balance is balanced, the wrong balloon will sink, otherwise the wrong balloon is the one that has just been taken off.