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1. A rectangular fish tank 25m by 9m has water in it to a level of 2m . This water is carefully poured into a cylindrical container with a diameter of 10m . How high will the water reach in the cylindrical container?
- A. 18π
- B. 18π
- C. 18π
- D. 18π
Answer: Option B
Explanation:
ধরি, Cylindrical container এর উচ্চতা h মিটার
এবং, ব্যাসার্ধ r = 10/2 মিটার = 5 মিটার
π(5)2 × h = 25 × 9 × 2
h = 25 × 9 × 2 /25π
h = 18/π
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