The cost of 4 chairs and 5 tables is Rs 6600 and the cost of 5 chairs and 3 tables is Rs 5000 at the same prices. What are the prices of a table and a chair?
Answers
Answer:
the cost of 4 chair 3300 and the cost of 3 tables 2500
Explanation:
the prices of a table and chair is 3300 and 2500
the cost of 4 chair 3300 and five tables is Rs 3300 { 3300 + 3300 =6600
and the cost of 5 chairs 2500 and 3 tables is Rs 2500 { 2500+2500=5000
Explanation :-
Let the cost of 1 chair be ₹x
Let the cost of 1 table be ₹y
According to the question ,
cost of 4 chaires & 3 tables = ₹2100
So, 4x + 3y = 2100 -------- (1)
cost of 5 chairs & 2 tables is ₹1750
So, 5x + 2y = 1750 -------- (2)
Now,
2*(1) gives 8x + 6y = 4200 --------- (3)
3*(2) gives 15x + 6y = 5250 -------- (4)
:- { Subtract (3) - (4) }
15x + 6y - 8x - 6y = 5250 - 4200
7x = 1050
x = 150
Putting the value of ' x ' in equation (2) , we get
5(150) + 2y = 1750
750 + 2y = 1750
2y = 1750 - 750
2y = 1000
y = 1000/2
y = 500
Answer :- Therefore, the cost of 1 chair i.e 'x' = ₹150
the cost of 1 table i.e 'y' = ₹500
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