Onyango went to the shop and bought the following items; - 3 litres of milk at sh. 2,000 each litre - 1/4 kg of rice at sh. 4,000 per kg - 250g of beans at sh. 3,600 each kilogram - 9 oranges at sh. 800 for every 3 oranges If he was given a discount of 10%, calculate the amount of money he paid.

Haya master, hapa kuna masuluhisho ya swali lako:

5. Onyango alienda dukani na kununua vitu vifuatavyo;

• Lita 3 za maziwa kwa sh. 2,000 kila lita

• $1\frac{1}{4}$ kg ya mchele kwa sh. 4,000 kwa kg

• 250g za maharagwe kwa sh. 3,600 kila kilogramu

• Machungwa 9 kwa sh. 800 kwa kila machungwa 3 Ikiwa alipewa punguzo la 10%, kokotoa kiasi cha pesa alicholipa.

• Hatua ya 1: Kokotoa gharama ya kila bidhaa.

  • Maziwa: $$3 \text{ lita} \times \text{sh. } 2,000/\text{lita} = \text{sh. } 6,000$$
  • Mchele: $$1\frac{1}{4} \text{ kg} = \frac{5}{4} \text{ kg}$$ $$\frac{5}{4} \text{ kg} \times \text{sh. } 4,000/\text{kg} = \text{sh. } 5,000$$
  • Maharagwe: Kwanza, badilisha gramu kuwa kilogramu: $250 \text{g} = \frac{250}{1000} \text{ kg} = \frac{1}{4} \text{ kg}$. $$\frac{1}{4} \text{ kg} \times \text{sh. } 3,600/\text{kg} = \text{sh. } 900$$
  • Machungwa: Kuna seti ngapi za machungwa 3 katika machungwa 9? $\frac{9}{3} = 3$ seti. $$3 \text{ seti} \times \text{sh. } 800/\text{seti} = \text{sh. } 2,400$$

• Hatua ya 2: Kokotoa jumla ya gharama kabla ya punguzo.

  $$\text{Jumla ya gharama} = \text{sh. } 6,000 + \text{sh. } 5,000 + \text{sh. } 900 + \text{sh. } 2,400$$ $$\text{Jumla ya gharama} = \text{sh. } 14,300$$

• Hatua ya 3: Kokotoa kiasi cha punguzo (10%).

  $$\text{Punguzo} = 10\% \text{ ya sh. } 14,300$$ $$\text{Punguzo} = \frac{10}{100} \times 14,300 = \text{sh. } 1,430$$

• Hatua ya 4: Kokotoa kiasi cha pesa alicholipa baada ya punguzo.

  $$\text{Kiasi kilicholipwa} = \text{Jumla ya gharama} - \text{Punguzo}$$ $$\text{Kiasi kilicholipwa} = \text{sh. } 14,300 - \text{sh. } 1,430$$ $$\text{Kiasi kilicholipwa} = \text{sh. } 12,870$$

  Kiasi cha pesa alicholipa Onyango ni $\text{sh. 12,870}$.