Question

(iii) While going for a picnic Pranav buys 3 packets of Kurkure
and Coca cola for 100Rs. Suyash buys 4 packets of Kurkure
and 2 Coca cola for 120Rs.What is the cost of Kurkure and
Coca cola?​

Answer 1

Answer:

Kurkure=₹5

Coca Cola =₹50

Answer 2

Answer:

Cost of 1 Kurkure is 40Rs.

Cost of coca cola is - 20Rs.

Step-by-step explanation:

Let the cost of 1 packet of Kurkure = x

and, the cost of 1 coca cola = y

ATQ,

Pranav buys 3 packets of Kurkure and coca cola

= 100Rs.

3x + 1y = 100 ------------- equation (1)

Suyash buys 4 packets of Kurkure and 2 Coca cola = 120Rs.

4x + 2y = 120 ------------ equation (2)

Divide equation (2) by 2

(4x +2y)/2 = 120/2

2x + y = 60 ------------- equation (3)

Subtract equation (3) from equation (1)

(3x + 1y) - (2x + 1y) = 100 - 60

3x + y - 2x -y = 40

3x - 2x + y -y = 40

1x = 40

Put x = 40 in equation (1)

3x + y = 100

3×40 + y = 100

120 + y = 100

y = 100 - 120

y = -20

Hence, the cost of 1 packet of Kurkure is 40Rs.

and the cost of 1 coca cola is -20Rs.