how many solid spheres of diameter 6 cm are required to be melted to form a solid metal cylinder of height 45 cm and diameter 4 cm
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Answered by
3
No of spheres×vol of 1 sphere=vol of 1 cylinder
n×4/3×22/7×3^3=22/7×2^2×45
22/7 will get cancelled on both the sides
n=2×2×45×3/4×3×3
On solving ans is 15
n=15
n×4/3×22/7×3^3=22/7×2^2×45
22/7 will get cancelled on both the sides
n=2×2×45×3/4×3×3
On solving ans is 15
n=15
valliprenu:
Is the ans crt?
No it's 5
Answered by
2
volume of N sphere = vol. of cylinder
N 4/3 π r³= πr²h
N 4/3x 27= 4x45
N=45x3/27
N=5
N 4/3 π r³= πr²h
N 4/3x 27= 4x45
N=45x3/27
N=5
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