Question

the cost of 5 chips, 10 mouses and 12 hard drives is rs 200. the cost of 22 mouses, 10 chips and 24 hard drives is Rs. 420. Find the cost of 1 mouse?

Answer 1

Answer:

Rs10 is the cost of one mouse.

Step-by-step explanation:

Let cost of each chip be X.

Let cost of each mouse be Y.

Let cost of each hard drive be Z.

Now as per question,

5X+10Y+12Z=200................(1)

10X+22Y+24Z=420..............(2)

Now multiplying both sides of equation (1) by 2 we get,

10X+20Y+24Z=400...............(3)

Subtracting equation (3) from equation (2),

2Y=20

Y=10.

Thus the cost of one mouse is Rs 10.