If the radius of a sphere is increased by 20% then volume will be increased by how much percent
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let radius of sphere =100 unit
so, volume of sphere =10^6 {4/3pi}
a/c to question ,
radius =100+100 x 20/100=120 unit
now,
volume of sphere=1728x 10^3 {4/3pi}
hence % increase in volume =72.8 %
so, volume of sphere =10^6 {4/3pi}
a/c to question ,
radius =100+100 x 20/100=120 unit
now,
volume of sphere=1728x 10^3 {4/3pi}
hence % increase in volume =72.8 %
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