2/9 of the pupiles in Primary 5 scored an 'A' for a test. The ratio of the number of pupils who scored a 'B' to the number who scored an 'A' was 5:3. The rest of the pupils scored a 'C' and a 'D' in the ratio 6:5. The pupiles who scored a 'B' were 48 more than the pupils who scored a 'C'.
a. How many pupils were their in Primary 5?
b. How many pupils failed the test if the failure was a 'D' grade?
2/9 of the pupiles in Primary 5 scored an 'A' for a test. The ratio of the number of pupils who scored a 'B' to the number who scored an 'A' was 5:3. The rest of the pupils scored a 'C' and a 'D' in the ratio 6:5. The pupiles who scored a 'B' were 48 more than the pupils who scored a 'C'.
a. How many pupils were their in Primary 5?
b. How many pupils failed the test if the failure was a 'D' grade?
Related questions
The table shows the ratio of people who ate a certain type of lunch to the total number of people who ate lunch.
Lunch
| Type of Lunch | Ratio to the Total |
| Turkey sandwich | 1/3 |
| Vegetarian sandwich | 1/6 |
| Chicken sandwich | 4/15 |
| Salad | 7/30 |
A total of 840 people ate lunch. Which statement is true?
A. Half as many people ate a turkey sandwich as ate a vegetarian sandwich.
B. One-fourth as many people ate a vegetarian sandwich as ate a salad.
C. There were 56 more people who ate a turkey sandwich than ate a chicken sandwich.
D. There were 28 more people who ate a salad than ate a chicken sandwich.