Question

Семья состоит из мужа, жены и их дочери студентки. Если бы зарплата мужа увеличилась втрое, общий доход семьи вырос бы на 110% Если бы стипендия дочери уменьшилась втрое, общий доход семьи сокротился бы на 6% Сколько процентов от общего дохода семьи составляет зарплата жены?

Answer 1

М, Ж, Д - доля в доходе семьи
М +Ж +Д =100%

3M +Ж +Д = 100% +110%
3M -M =110% <=> M= 110%/2 =55%

M +Ж +Д/3 = 100% -6%
Д -Д/3 =6% <=> Д= 3*6%/2 =9%

Ж= 100% -М -Д = 100% -55% -9% =36%

Answer 2

Calculation of the Wife's Salary as a Percentage of the Total Family Income

To determine the percentage of the total family income that the wife's salary represents, we can use the information provided in the question. Let's break down the problem step by step:

1. Let's assume the current total family income is represented by X. 2. If the husband's salary were to increase threefold, the new total family income would be X + 110% of X. 3. If the daughter's scholarship were to decrease threefold, the new total family income would be X - 6% of X.

Now, let's solve for the wife's salary as a percentage of the total family income:

1. If the husband's salary were to increase threefold, the new total family income would be X + 110% of X. 2. If the daughter's scholarship were to decrease threefold, the new total family income would be X - 6% of X.

We can set up the following equation to solve for the wife's salary as a percentage of the total family income:

X + 110% of X = X - 6% of X

Simplifying the equation:

1.1X = 0.94X

Subtracting 0.94X from both sides:

0.16X = 0

Dividing both sides by 0.16:

X = 0

Based on the information provided, it seems that there is an error or inconsistency in the question. The equation does not yield a valid solution. Please double-check the information and provide any additional details if available.