Question

The cost of 2kg apples and 1 kg of grapes on a day was found to be 160 after a month the cost of 4kg of apples and 2 kg of grapes is 300 represent it algebrically and graphically

Answer 1

Let the cost of 1kg of apples be x and cost of 1 kg of grapes be y  

Then the algebraic representation  

2x + y = 160 .................... (Eqn 1)  

4x + 2y = 300 ........................(Eqn 2)  

Answer 2

et cost each kg of apples  = Rs x

Cost of each kg of grapes  = Rs  y

Given that 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)

2x          = 160  - y

x            =  (160 – y)/2

Let y = 0 , 80  and 160  we get

x = (160 – ( 0 ))/2   =  80

x = (160- 80 )/2      = 40

x = (160 – 2* 80 )/2 = 0