Question

the cost of 1 kilogram apple and 3 kilogram orange is 950 rupees .the cost of 3 kilogram apple and 8 kilogram orange is 700 rupees. what is the cost of 1 kilogram Apple? what is the cost of 1 kilogram orange?​

Answer 1

Given:

1. The cost of 1 kilogram apple and 3 kilogram orange is 950 rupees.
2. The cost of 3 kilogram apple and 8 kilogram orange is 700 rupees.

To Find:

1. The cost of 1 kilogram apple.
2. The cost of 1 kilogram orange.

Assumption:

Let the cost of one apple and one orange be x and y respectively.

Explanation:

According to the question,

x + 3y = 950 _____ i

3x + 8y = 700 _____ ii

Multiply both the sides of eq.(i) by 3, we obtain

3x + 9y = 2,850 _____ iii

Subtract eq.(ii) from eq.(iii), we obtain

y = 2,150

Substitute the value of y in eq.(i), we obtain

x + 3 ( 2,150 ) = 950

or, 6,450 - 950 = x

or, x = 5,500

Answer:

The cost of 1 kilogram apple is Rs. 5,500.

The cost of 1 kilogram orange is Rs. 2,150.

Answer 2

Answer:

$\huge \underline \red{ ANSWER :-}$

Given:

The cost of 1 kilogram apple and 3 kilogram orange is 950 rupees.

The cost of 3 kilogram apple and 8 kilogram orange is 700 rupees.

To Find:

The cost of 1 kilogram apple.

The cost of 1 kilogram orange.

Assumption:

Let the cost of one apple and one orange be x and y respectively.

Explanation:

According to the question,

x + 3y = 950 _____ i

3x + 8y = 700 _____ ii

Multiply both the sides of eq.(i) by 3, we obtain

3x + 9y = 2,850 _____ iii

Subtract eq.(ii) from eq.(iii), we obtain

y = 2,150

Substitute the value of y in eq.(i), we obtain

x + 3 ( 2,150 ) = 950

or, 6,450 - 950 = x

or, x = 5,500

Answer:

The cost of 1 kilogram apple is Rs. 5,500.

The cost of 1 kilogram apple is Rs. 5,500.The cost of 1 kilogram orange is Rs. 2,150.