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Radius (r) of cylindrical part =1.4 cm
Radius (R) of hemispherical part =1.4 cm
Length of each hemispherical part = 1.4 cm
The radius of hemispherical part = 1.4 cm
Length (h) of cylindrical part = 5 - 2 × Length of hemispherical part
= 5 -( 2 × 1.4 )
= 5 - 2.8
= 2.2 cm
The volume of one gulabjamun = Vol. of cylindrical part + 2 × Vol. of hemispherical part
= (πr2h )+ (2 × πR3)
= (πr2h) + (R3)
= [π × (1.4)2 × 2.2] +[ (1.4)3]
= 13.552 + 11.498
= 25.05 cm3
Volume of 45 gulabjamun = 45 × 25.05
= 1,127.25 cm3
The volume of sugar syrup = 30% of the volume
= × 1127.25
= 338.17 cm3
= 338 cm3(approx)
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