Question

5. Which of the following represents the situation where Siri bought 5 apples and 6 oranges
and Laxmi bought 2 apples and 15 oranges for same amount of total money?
(1) 5x + 6 = 2x + 15g
(2) 5x+15y = 6x+ 2y
(3) 5x-6y=2x-15y
(4) 5x- 15y = 6x-2y​

Answer 1

Answer:

he. he

he

Explanation:

I don't know. he he he

Answer 2

Answer:

Explanation:

Let the cost of 1 book =x

And the cost of 1 pen =y

⇒5x+7y=79

⇒7x+5y=77

Equation (1) × 7 : 35x+49y=79×7

Equation (2) × 5 : 35x+25y=77×5

Subtract two equations ;

⇒24y=168

⇒y=7

⇒x=6

Total cost of 1 book and 2 pens =x+2y=6+14=20