The figures show 3 different fruits, a mango, a pear and 4 similar bananas. The mass of the banana is ³₅ of the mass of the mango.

1. Find the mass of the mango.
2. Find the mass of the pear.

(a)
Mass of the banana = 3 u
Mass of the mango = 5 u

(Weighing scale on the right)
10 intervals → 1000 g
1 interval →  1000 ÷ 10 = 100 g

Mass of 4 bananas
= 1000 + 2 x 100
= 1000 + 200
= 1200 g

Mass of 1 banana
= 1200 ÷ 4
= 300 g

(Weighing scale on the left)
1 kg = 1000 g
2 kg = 2000 g

10 intervals → 1 kg = 1000 g
1 interval → 1000 ÷ 10 = 100 g

Mass of the mango and the pear
= 1000 + 1 x 100
= 1000 + 100
= 1100 g

5 u = 300

1 u = 300 ÷ 5 = 60

Mass of the mango
= 3 u
= 3 x 60
= 180 g

(b)
Mass of the pear
= 1100 - 180
= 920 g

Answer(s): (a) 180 g; (b) 920 g