4MA0 Higher June 2013 Paper 3R Q16
16
Glass A contains 122 millilitres of water, correct to the nearest millilitre.
Glass B contains 168 millilitres of water, correct to the nearest millilitre.
Calculate the upper bound of the difference, in millilitres, between the volume of water in glass A and the volume of water in glass B.
(2)
| Scheme | Marks |
|---|---|
| 168.5 − 121.5 | M1 |
| 47 | A1 |
| (2) |
Notes
M1: for 168.5 or \(168.4\dot{9}\) or 168.499... or 121.5
A1: for 47 with no incorrect working