A) \[75:21\]
B) \[125:39\]
C) \[29:150\]
D) \[29:121\]
Correct Answer: C
Solution :
Area kept for animals \[=\left[ (6\times 3)+\left( \frac{22}{7}\times \frac{7}{2}\times \frac{7}{2} \right) \right]{{m}^{2}}\] \[=(18+38.5){{m}^{2}}=56.5{{m}^{2}}\] Area kept for plants \[=(8\times 2){{m}^{2}}=16{{m}^{2}}\] So, total area kept for plants and animals \[=(56.5+16){{m}^{2}}=72.5{{m}^{2}}\] Area of land \[=(25\times 15){{m}^{2}}=375{{m}^{2}}\] So, required ratio\[=72.5:375=29:150\]
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