The cost of a keyboard and a mouse is ₹3600. If the cost of the keyboard is seven times that of the mouse, what is the cost of the keyboard?
Given:
The cost of keyboard and a mouse =₹3600
The cost of keyboard is 7 times that of mouse
Solution:
Let the cost of mouse be x
Then cost of keyboard = 7x
According to question:
x +7x =3600
8x = 3600
x= ₹450
Cost of mouse = ₹450
Cost of keyboard = 7x = 7 450 = ₹3150
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