The mass of a box with 3 mini-helicopters is 4.69 kg.
The mass of the empty box is 3.82 kg.
- What is the mass of each mini-helicopter?
- What is the mass of a box with 5 mini-helicopters?
(a)
Mass of 3 mini-helicopters
= 4.69 - 3.82
= 0.87 kg
Mass of 1 mini-helicopter
= 0.87 ÷ 3
= 0.29 kg
(b)
Mass of 1 box with 5 mini-helicopters
= 3.82 + 5 x 0.29
= 3.82 + 1.45
= 5.27 kg
Answer(s): (a) 0.29 kg; (b) 5.27 kg