# In an assessment the first 17 people. What was the average number of points scored by the last 30 people only?

129 views

In an assessment the first 17 people scored an average of three points each. After a further 30 people had taken the assessment the average score rose to nine points each. What was the average number of points scored by the last 30 people only?

posted Sep 15, 2017

12.4 is the average of last 30 people scored

Similar Puzzles

30 people were given 10 quiz questions, they correctly answered an average of only three each.

After a further 30 people had answered the quiz, the average number of correct answers rose to six per person.

What was the average number of correct answers from each of the last 30 people only?

In a cricket match the average number of runs per over in the first 20 overs was three.

After a further 30 overs the average number of runs rose to seven.

What was the average number of runs in the last 30 overs only?

In a doctors' surgery the first 15 patients were only in the consulting room for an average of three minutes each.

After a further 30 people had seen their doctor, the average number of minutes spent in the consulting room increased to eight minutes per patient.

What was the average amount of time each of the last 30 patients spent in the consulting room?