The mass of a box with 5 mini-helicopters is 6.24 kg.
The mass of the empty box is 3.59 kg.
- What is the mass of each mini-helicopter?
- What is the mass of a box with 4 mini-helicopters?
(a)
Mass of 5 mini-helicopters
= 6.24 - 3.59
= 2.65 kg
Mass of 1 mini-helicopter
= 2.65 ÷ 5
= 0.53 kg
(b)
Mass of 1 box with 4 mini-helicopters
= 3.59 + 4 x 0.53
= 3.59 + 2.12
= 5.71 kg
Answer(s): (a) 0.53 kg; (b) 5.71 kg