In a Math test, 30% of 500 students got average scores. How many students got average scores?
Q. In an exam, the average marks scored by 25 students is 18. The average marks scored by the first 12 students is 14 and by last 12 students is 17. How many marks did the 13th student score?
A student has got the following scores in his tests: 87, 95, 76, and 88. He wants average of 85 or better overall. What is the minimum score he must get on the last test in order to achieve that average?