Length of cylindrical Gulab jamun,

l = 5 – (1.4 + 1.4) = 2.2 cm.

Radius, r = 1.4 cm.

∴ Volume of Cylinder (1 Gulab Jamun), = Left hemisphere + Volume of Cylinder + Right hemisphere

∴ Total volume of such 45 Gulab jamun,

= 45 x \(\frac{22}{3}\) x 0.28 x 12.2

= 22 × 0.28 × 183 = 1127.28 cm^{3} .

∴ Gulab Jamun contains sugar syrup upto about 30% of its volume.

∴ 1127.28 x \(\frac{30}{100}\)

= 338 cm^{3} .