A) 1 m 12 cm
B) 1 m 12.1 cm
C) 1 m 21.1 cm
D) 1 m 21 cm
Correct Answer: B
Solution :
[b] Average height = \[\frac{6\times (1.15)+8\times (1.10)+6(1.12)}{20}\] \[\Rightarrow \frac{22.42}{20}=1.121\,\,or\,\,1\,\,m\,12.1\,\,cm\]You need to login to perform this action.
You will be redirected in
3 sec