A) \[180\,\,cm\]
B) \[120\,\,cm\]
C) \[140\,\,cm\]
D) \[160\,\,cm\]
Correct Answer: B
Solution :
From the figure, the 5th mark denotes the height of pole \[P\] which is\[225\,\,cm\]. So, each marking is at\[\frac{225}{5}cm=45\,\,cm\] Pole \[Q\] is at the 4th mark. So, the height of pole \[Q=4\times 45\,\,cm=180\,\,cm\] The difference\[=3\,\,m-180\,\,cm\] \[=(300-180)cm=120\,\,cm\] So, pole \[Q\] is \[120\,\,cm\] less than\[3\,\,m\].You need to login to perform this action.
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