1MA0 Foundation June 2012 Paper 1 Q26
26
There are 300 ml of medicine in a bottle.
Mary has to take two 5 ml spoons full of medicine twice a day.
Mary has to take the medicine until the bottle is empty.
(a) How many days does Mary have to take the medicine for?
days (3)
days (3)
You can work out the amount of medicine, \(c\) ml, to give to a child by using the formula
\[c = \frac{ma}{150}\]\(m\) is the age of the child, in months.
\(a\) is an adult dose, in ml.
A child is 30 months old.
An adult’s dose is 40 ml.
(b) Work out the amount of medicine you can give to the child.
ml (2)
ml (2)
| Working | Answer | Mark | Notes |
|---|---|---|---|
| \(2 \times 5 \times 2 = 20\) \(300 \div 20 =\) | 15 | 3 | M2 for \(300 \div (2 \times 5 \times 2)\) oe (M1 for \(2 \times 5 \times 2\) or 20 seen or \(300 \div (2 \times 5)\) or 30 seen A1 cao |
| Working | Answer | Mark | Notes |
|---|---|---|---|
| \(c = \dfrac{30 \times 40}{150} =\) | 8 | 2 | M1 for \(\dfrac{30 \times 40}{150}\) or 1200 seen A1 cao |