Question

The cost of 1kg of apple and 2kg of grapes on a day was found to be Rs 180 also, the cost of 4 kg of apple and 2 kg of grapes is Rs 330. represent this situation algebraically

Answer 1

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Let cost each kg of apples   = Rs x
Cost of each kg of grapes    = Rs y
The cost of 2 kg of apples and 1kg of grapes on a day was found to be Rs 160
So that
2 x + y             = 160              … (1)
Given that the cost of 4 kg of apples and 2 kg of grapes is Rs 300
 so we get
4x + 2y= 300               … (2)
Algebraic representation  of situation

2 x + y  = 160              … (1)
4x + 2y= 300               … (2)

To represent it graphically, we need to plot these equation  on the XY coordinate system.

We can choose two values of each equation and plot it on XY coordinate system
2x +y = 160   
 
or

y=160-2x


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Answer 2

answer Rs720 of 4kg apple