alleryWater 30 cm deep in a radius-7 cm cylinder fills an empty 22 × 15 cm base tank; depth? π = 22/7.
A7 cm
B28 cm
C21 cm
D14 cm
Answer & Solution
Correct answer: D. 14 cm
The transferred volume is (22/7) × 7² × 30 = 4620 cm³, giving depth 4620 ÷ (22 × 15) = 14 cm.
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