| A tree is 12 m tall and casts an 8 m long shadow. At the same time, a flag pole casts a 100 m long shadow. How long is the flag pole? |
A) 150 m
B) 200 m
C) 125 m
D) 115 m
Correct Answer: A
Solution :
| \[\because \] 8 m shadow means original height \[=12\,\,m\] |
| \[\therefore \]1 m shadow means original height \[=\frac{12}{8}m\] |
| \[\therefore \]100 m shadow means original height |
| \[=\frac{12}{8}\times 100\,\,m=\frac{6}{4}\times 100=6\times 25=150\,\,m\] |
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