A rectangular fish tank 25'' by 9'' has water in it to a level of 2". This water is carefully poured into a cylindrical with a diameter of 10" . How high (in term of π) will the water reach in the cylindrical container ?

A 9π
B π/18
C 18/π
D 18π

Correct Answer: 18/π

ধরি, সিলিন্ডারের উচ্চতা h πr2h = 25 × 9 ×2 π (5)2 h = 25 × 18 h = 25 × 18/25 theta h = 18/π
Bissoy MCQ
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