A) 1 : 125
B) 1 : 5
C) 1 : 625
D) 1 : 25
Correct Answer: D
Solution :
Surface area of a small cube \[=6\times \,\,{{(edge)}^{2}}=6\times 1=6\,\,\text{c}{{\text{m}}^{\text{2}}}\] Surface area of the large cube \[=6\,\,{{(5)}^{2}}=6\times 25\,\,\text{c}{{\text{m}}^{\text{2}}}\] \[\therefore \]Required ratio\[=\frac{6}{6\times 25}=\frac{1}{25}=1:25\]
You need to login to perform this action.
You will be redirected in
3 sec
