The figure M shows a cylindrical bucket of diameter 28cm and height 100cm while figure N shows a jug which can hold 2.2 litres of water when completely full. (a) Calculate the amount of water in litres the bucket M can hold. (Use pi = 22/7) (b) How many jugs N can be enough to fill the bucket M?

Kipenyo ($D$) = 28 cm
Radius ($r$) = $\frac{D}{2} = \frac{28 \text{ cm}}{2} = 14 \text{ cm}$

Urefu ($h$) = 100 cm
Tumia $\pi = \frac{22}{7}$
Fomula ya ujazo wa silinda ni $V = \pi r^2 h$.

Tunajua kuwa 1 lita = 1000 cm$^3$.

Ndoo M inaweza kushika lita 61.6 za maji.

28. b) Jagi ngapi N zinaweza kutosha kujaza ndoo M?

Ujazo wa ndoo M = 61.6 lita (kutoka sehemu a)
Ujazo wa jagi N = 2.2 lita (kutoka maelezo ya swali)

Idadi ya jagi = $\frac{\text{Ujazo wa ndoo M}}{\text{Ujazo wa jagi N}}$

Jagi 28 N zinaweza kutosha kujaza ndoo M.