Question
PSLE
The table shows the number of pupils with the following scores. A lower score means a better performance. Prizes were given to the top 6 pupils. John won a prize. What was the highest he could have scored?

 Score  16  17  20  21  24 27 30
Pupils  1  10  4
2 m

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PSLE
The table shows the number of pupils with the following scores. A lower score means a better performance. Prizes were given to the top 6 pupils. John won a prize. What was the highest he could have scored?

 Score  16  17  20  21  24 27 30
Pupils  1  10  4