Question

five apples and 9 oranges together cost rupees 57 and apples 9 and 5 oranges together cost rupees 63 find the cost of 3 apples and oranges​

Answer 1

Answer:

Step-by-step explanation:

let cost of one apple be = x

" " " " orange be = y

So

5x + 9y =57-------------eq 1

9x + 5y = 63-------------eq 2

Use elimination method

Answer 2

Answer:

Price of 3 apples = 17.9784

Price of 3 oranges = 9.12

Step-by-step explanation:

Here is the answer

Let us consider price of one apple be x and price of one orange be y

Then A/Q,

5x+9y=57   --------------------(1)

9x+5y=63   --------------------(2)

Now we will use elimination method to eliminate x from equations (1) and (2).

(1)  x 9  ⇒ 45x+81y = 513

(2) x 5 ⇒ 45x+25y = 315

Now subtracting we get

81y - 25y =513 - 315

⇒65y = 198

⇒y = 198/65

⇒y = 3.04

Putting this value in (1) we get

5x+9*3.04=57

⇒5x+27.036=57

⇒5x=57-27.036

⇒5x=29.964

⇒x=29.964/5

⇒x=5.9928

Therefore price of 3 apples = 3*5.9928 = 17.9784

Price of 3 oranges = 3*3.04 = 9.12

Hope this was helpful.