Lessons

General Aptitude
13.1 Chain Rule - General Questions

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Q.

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?

View Answer

Correct choice: D

Explanation:

Cost of x metres = Rs. d.

Cost of 1 metre = Rs. (d/x)

Cost of y metres = Rs. (d/x.y) = Rs. (yd/x).
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