Q. 34.0( 378 Votes )

Answer :

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

= (πr^{2}h )+ (2 × πR^{3})

= (πr^{2}h) + (R^{3})

= [π × (1.4)^{2} × 2.2] +[ (1.4)^{3}]

=

=

= 13.552 + 11.498

= 25.05 cm^{3}

Volume of 45 gulabjamun = 45 × 25.05

= 1,127.25 cm^{3}

The volume of sugar syrup = 30% of the volume

= × 1127.25

= 338.17 cm^{3}

**= 338 cm ^{3}(approx)**

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