Question

7 audio cassettes and three video cassette cost ₹1110, while 5 audio cassettes and 4 video cassettes cost ₹1350 find the cost of an audio cassettes and video cassettes

Answer 1

Answer:

answer is 30

Step-by-step explanation:

(7x+3y =1110) 4

(5x+4y =1350) 3

28 x + 12 y = 4440

-15x -12y = -4050

13 x = 390

x= 390/13

x= 30