DAY 189

Today’s Challenge

It was estimated that about £125 per second was raised during a TV show charity evening. How much money was raised when the programme was on air from 7pm to 11pm?


The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 2nd & 3rd rows contain the following fourteen numbers:

8     13     17     25     28     36     42     45     48     55     63     64     66     80

Which number, when 20 is added to it, becomes a square number?



. . . can be found when clicking this.


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