Question

The cost of 3 oranges and 12 apples is Rs 9.60 . When i purchased 5 oranges and 7 apple I gave Rs 6.90 . Find the cost of apples per dozen???​

Answer 1

Answer:

Step-by-step explanation:

Let cp of 1 orange be x

And the cp of 1 apple be y

According to question

5x+3y=35 - - - - - (i)

2x + 4y=28 - - - - (ii)

Multiply by 2 in equation (i) and by 5 in equation (ii)

Now,

=> 10x+6y=70 - - - - (i)

=> 10x+20y=140 - - - (ii)

By subtraction equation (i) from (ii)

We get

=> 14y =70

=> Y= 10/14

=> Y=5

Putting the value of y in equation (i)

=> 5x+(3*5)=35

=> 5x =35-15

=> X =20/5

=> X =4

Hence

The cost of an orange =₹4

And the cost of an apple = ₹5

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Answer 2

Answer:

Step-by-step explanation: