Sail E0 Webinar

66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be:

A .  84
B .  90
C .  168
D .  336
Answer: Option A

Let the length of the wire be h.

Radius = \(\frac{1}{2}mm=\frac{1}{20}cm. Then,\)

\(\frac{22}{7}\times\frac{1}{20}\times\frac{1}{20}\times h= 66 \) 

h =  \(\left(\frac{66\times20\times20\times7}{22}\right)=8400cm=84 m.\)

Was this answer helpful ?
Next Question

Submit Solution

Your email address will not be published. Required fields are marked *

More Questions on This Topic :

Latest Videos

Latest Test Papers