The graph shows the mass of 6 children in kilograms.
- Who is three times as heavy as David? Give the first letter of the answer. (Eg Apple = A)
- What is the total mass of the 3 heaviest children?
(a)
Mass of the 6 children
Glen: 52 kg
Riordan: 31 kg
Julian: 102 kg
Billy: 64 kg
David: 34 kg
Tom: 45 kg
Mass of a child to be 3 times as heavy as David
= 34 x 3
= 102 kg
The child who is 3 times as heavy as David = Julian = J
(b)
Mass of the three heaviest children
= 52 + 102 + 64
= 218 kg
Answer(s): (a) J; (b) 218 kg