Case study:
Neeta, Salma and Vivian are neighbours in different flats of the same building. Last Sunday, they went together to a departmental store to buy groceries.

The groceries purchased by them is as shown below.

	Pulses(kg)	Tea packets	Refined oil(litre)
1.Neeta	15	3	8
2.Salma	10	4	12
3.Vivian	5	5	9

The prices of the items are as follows :

Pulses : ₹ 170 per kg

Tea : ₹ 150 per packet

Refined oil : ₹ 250 per litre

Using matrix multiplication, find the total amount that Neeta, Salma and Vivian paid.