Question

От куска проволоки сначала отрезали 40%, а потом 30% от остатка. Сколько % проволоки осталось?

Answer 1

100%-40%=60% - остаток
60%-30%=30%
Ответ: 30%

Answer 2

1)30+40=70 в общем отрезали 2)100процентов минус70 процентов =30процентов осталось

Answer 3

Calculation of Remaining Wire

To calculate the remaining wire after cutting 40% and then 30% of the remaining wire, we can use the following steps:

1. Initial Cut of 40% - After the initial cut of 40%, 60% of the wire remains.

2. Subsequent Cut of 30% from the Remaining Wire - 30% of the remaining 60% is cut.

Calculation

Let's calculate the remaining wire using the given percentages.

1. Initial Cut of 40% - If we start with 100 units of wire, after the initial cut of 40%, we have 60 units of wire remaining.

2. Subsequent Cut of 30% from the Remaining Wire - Now, 30% of the remaining 60 units is cut. - 30% of 60 is 18. - So, 18 units of wire are cut from the remaining 60 units.

Remaining Wire

After the two cuts, the remaining wire can be calculated as follows: - 60 units (initial remaining wire) - 18 units (subsequent cut) = 42 units of wire remaining

Therefore, after the two cuts, 42 units of wire are left.