The radius of the cylinder is half its height and area of the inner part is 616 sq. cms. How many litres of milk approximately, can it contain?
1.4 L
1.5 L
1.7 L
1.9 L
A
1.4 L
B
1.5 L
C
1.9 L
D
1.7 L
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Solution
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Given that r=1h And 2Πrh+Πr2=616m2 ∴2Π(12h)h+Π(12h)2=616m2 ⇒54×227h2=616⇒(616×28110)=28×285 ∴Volume=Πr2h=227×14h2×h ∴Volume=227×14×28×285×28√5 ∴Volume=22×28×2825×√5=22×28×28×22325×100=1.53liter
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