HOTS Mathematics Primary 5 Length and Mass

Mr Ravi runs a stall at Tekka Market wet market. He buys a large slab of meat with a total mass of 4 kg 350 g. He sets aside 1/3 of the slab for his own use. The remaining meat is packed into 5 equal portions to sell. What is the mass of each portion in grams?

A 580 g
B 870 g
C 725 g
D 290 g
Show Worked Solution

Worked Solution

Step 1: Convert the total mass to grams. 4 kg 350 g = 4000 g + 350 g = 4350 g Step 2: Find the mass Mr Ravi set aside (1/3 of total). 1/3 × 4350 = 4350 ÷ 3 = 1450 g Step 3: Find the mass of remaining meat. 4350 − 1450 = 2900 g Step 4: Divide the remainder equally into 5 portions. 2900 ÷ 5 = 580 g Each portion has a mass of 580 g.

Correct answer: 580 g

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