ibu membeli kurma Ajwa 2 1/2 kg

1kg = 1.000g.
2,5kg = 2,5 × 1.000 = 2.500g.

1ons = 100g.
15ons = 15 × 100 = 1.500g.

Sisa kurma ibu
= 2.500 + 1.500 - 3.500.
= 500g.

Jawaban : D.

1Kg=1000 g
1 Ons=100 g

maka:Kurma Ajwa=2,5 Kg×1000=2.500 g
-"-"-"-":Kurma Thoory=15 ons×100=1.500 g
*Jumlahnya=2.500+1.500=4.000 g
*yang dihidangkan=3.500 g

Sisa Kurma=4.000-3.500=500 gram (D)