All Scholars – Weekly Brainteaser Answers 22/02/16

In a supermarket, the first 25 customers of the day purchased an average of two items each.

After a further 15 customers, the average number of items purchased by each customer rose to eight.

What was the average number of items purchased by the last 15 customers only?

Answer:  18

Well done to Holly (7AH), Will (7DH), Sophie (7DH), Lucy (7DH), jasmine (7MH), Thomas (8AH) and Finlay (9AH) who all entered with the correct answer and have been awarded 10 Hall Points and a Praise Postcard.