Question

Помогите решить задачу!Семья Балаболкиных очень любит разговаривать по телефону .Бабушка проговорила по телефону 40 минут,мама - на 14 минут меньше бабушки.а Леночка -в 3 раза меньше.чем мама и бабушка вместе.Сколько минут болтала по телефону Леночка?

Answer 1

40-14=26 мин - разговаривала мама
40+26=66 мин - разговаривали мама и бабушка вместе
66/3=22 мин - разговаривала Леночка

Answer 2

Сначала, нужно узнать сколько по телефону разговаривала мама= 40-14=26минут, тогда вместе 40+26=66минут, тогда леночка 66/3=22минуты

Answer 3

Problem Analysis

We are given that the grandmother talked on the phone for 40 minutes, the mother talked for 14 minutes less than the grandmother, and Lenochka talked for 3 times less than the combined time of the mother and grandmother. We need to find out how many minutes Lenochka talked on the phone.

Solution

Let's break down the information given: - The grandmother talked for 40 minutes. - The mother talked for 14 minutes less than the grandmother. - Lenochka talked for 3 times less than the combined time of the mother and grandmother.

To find out how many minutes Lenochka talked on the phone, we need to calculate the combined time of the mother and grandmother and then divide it by 3.

Let's calculate the combined time of the mother and grandmother: - The mother talked for 14 minutes less than the grandmother, so the mother talked for 40 - 14 = 26 minutes. - The combined time of the mother and grandmother is 40 + 26 = 66 minutes.

Now, let's calculate how many minutes Lenochka talked on the phone: - Lenochka talked for 3 times less than the combined time of the mother and grandmother, so Lenochka talked for 66 / 3 = 22 minutes.

Therefore, Lenochka talked on the phone for 22 minutes.

Answer

Lenochka talked on the phone for 22 minutes.