MCQ
A vertical stick $20m$ long casts a shadow $10m$ long on the ground. At the same time, a tower casts a shadow $50m$ long on the ground. The height of the tower is:
- ✓$100m.$
- B$120m.$
- C$25m.$
- D$200m.$
✓
Answer
Correct option: A.
$100m.$
Height of a stick $= 20m$
and length of its shadow $= 10m$
At the same time
Let height of tower $= x m$
and its shadow $= 50m$
$20 : x = 10 : 50$
$x \times 10 = 20 \times 50$
$\Rightarrow\text{x}=\frac{20\times50}{10}=100$
Height of tower $= 100m.$
and length of its shadow $= 10m$
At the same time
Let height of tower $= x m$
and its shadow $= 50m$
$20 : x = 10 : 50$
$x \times 10 = 20 \times 50$
$\Rightarrow\text{x}=\frac{20\times50}{10}=100$
Height of tower $= 100m.$
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