Question

(ii)
The cost of 3 oranges and 12 apples is 27 and the
cost of 5 oranges and 9 apples is 23. Find the cost
of apples per dozen.​

Answer 1

Answer:

let the cost of oranges be x and apples be y

ATQ

3x + 12 y = 27 -- * 5

5x + 9y = 23 -- * 3)

15x + 60y = 135

15x + 27y = 69

- - -

33y = 66

y = 66/33

y = 2

put the value of y in eq

5x + 18 = 23

5x = 5

x = 1