Foundation June 2019 Paper 1 Q21
21 There are 40 students in a class.
Each student walks to school or cycles to school or gets the bus to school.
There are 22 girls in the class.
9 of the girls walk to school.
7 of the boys cycle to school.
6 of the 10 students who get the bus to school are boys.
Find the number of these students who walk to school. (4)
| Answer | Mark | Mark scheme |
|---|---|---|
| 14 | P1 | for process to find total number of boys, \(40 - 22\ (= 18)\) OR the number of girls who travel by bus \(10 - 6\ (= 4)\) |
| P1 | for process to find the number of girls who cycle to school \(22 - \text{``}4\text{''} - 9\ (=9)\) OR the number of boys who walk to school \(\text{``}18\text{''} - 6 - 7\ (= 5)\) | |
| P1 | full process to find the total number of students who walked to school eg \(\text{``}5\text{''} + 9\) or \(40 - (6 + 7 + \text{``}4\text{''} + \text{``}9\text{''})\) | |
| A1 | cao |
Additional guidance
| W | C | B | ||
|---|---|---|---|---|
| boy | 5 | (7) | (6) | 18 |
| girl | (9) | 9 | 4 | (22) |
| 14 | 16 | (10) | (40) |
Note 16 is 7+9 and 10 is 6+4
6+7 is 13 and 4+9=13 may be seen as intermediate steps