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?	Choose the most appropriate option
A) Rs. (xd/y)
B) Rs. xd
C) Rs. (yd/x)
D) Rs. yd
E) None of these
Explanation :   cost of x metres of wire = Rs. d   cost of 1 metre of wire = Rs.(d/x)   cost of y metre of wire = Rs.(y × (d/x)) = Rs. (yd/x).. Answer : Option Rs. (yd/x)
<result>C</result>
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?