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If the cost of x metres of wire is d rupees, then what is the cost of y metres of wire at the same rate?

Rs. (xy⁄d)
Rs. (xd)
Rs. (yd)
Rs. (yd⁄x)

Correct Answer: Rs. (yd⁄x)

Explanation:

Cost of x metres = Rs. d.

Cost of 1 metre = Rs.	❨	d	❩
		x

Cost of y metres = Rs.	❨	d	. y	❩	= Rs.	❨	yd	❩.
		x					x

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