The mass of a box with 5 mini-helicopters is 3.19 kg.
The mass of the empty box is 1.69 kg.
- What is the mass of each mini-helicopter?
- What is the mass of a box with 8 mini-helicopters?
(a)
Mass of 5 mini-helicopters
= 3.19 - 1.69
= 1.5 kg
Mass of 1 mini-helicopter
= 1.5 ÷ 5
= 0.3 kg
(b)
Mass of 1 box with 8 mini-helicopters
= 1.69 + 8 x 0.3
= 1.69 + 2.4
= 4.09 kg
Answer(s): (a) 0.3 kg; (b) 4.09 kg