For the following question
A cubical block of metal weighs 6 pounds.How much will another cube of the same metal weigh if its sides are twice as long ? Ans=48
Here is how I am solving it but I am getting 12 as the answer
For the current cubical block $12$ edges of cube weigh = 6 pounds
$1$ edge weighs = $\frac{6}{12} = \frac{1}{2} pound$
Doubled edge would weigh $2 \times \frac {1}{2} = 1$ so 12 edges would weigh $12 \times 1 = 12$