Question

УАрмана и Беллы вместе 2800 тенге, у Беллы и Даны – 2100 тенге. У Даны и Марии – 1900 тенге. Сколько тенге у Марии и Армана?1600​

Answer 1

Ответ:

А. 1600.

Б. 2200.

В. 3300.

Answer 2

Let's solve this problem step by step.

Let's assume the amount of money Maria has as 'M' and the amount of money Arman has as 'A'.

According to the given information:

1. Arman and Bella together have 2800 tenge. So, we can write the equation: A + B = 2800 -- (Equation 1)

2. Bella and Dana together have 2100 tenge. So, we can write the equation: B + D = 2100 -- (Equation 2)

3. Dana and Maria together have 1900 tenge. So, we can write the equation: D + M = 1900 -- (Equation 3)

We need to find the values of M and A.

To find the values of M and A, we can solve these equations simultaneously.

From Equation 3, we can express D in terms of M: D = 1900 - M

Substituting this value of D in Equation 2, we get: B + (1900 - M) = 2100 Simplifying, we get: B - M = 200 -- (Equation 4)

From Equation 1, we can express B in terms of A: B = 2800 - A

Substituting this value of B in Equation 4, we get: (2800 - A) - M = 200 Simplifying, we get: -A - M = -2600 -- (Equation 5)

Now, we have two equations with two variables: Equation 1: A + B = 2800 Equation 5: -A - M = -2600

Adding Equation 1 and Equation 5, we get: A - A + B - M = 2800 - 2600 Simplifying, we get: B - M = 200

We already had Equation 4 as B - M = 200. So, Equation 1 and Equation 5 are consistent.

From Equation 1, we can express B in terms of A: B = 2800 - A

Substituting this value of B in Equation 1, we get: A + (2800 - A) = 2800 Simplifying, we get: 2800 = 2800

This means the equations are dependent, and we have infinite solutions. Therefore, we cannot determine the specific values for M and A.

In conclusion, based on the given information, we cannot determine the exact amount of money Maria and Arman have.