DAY 355:

The Main Challenge

If the number sequence   10  19  28  37 . . .  is continued, which is the ONLY number from the following list that will appear later in the sequence?

105   115   125   135   145   155   165   175   185   195

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.

The 1st & 3rd columns contain the following fourteen numbers:

4   12   13   15   17   21   22   27   35   55   56   60   80   81

What is the sum of the multiples of 7?

The Factors Challenge

Which of the numbers below are factors of 355?

3    5    7    9    11    13    15    None of them

The Mathematically Possible Challenge

Using 48 and 12 once each, with + – × ÷ available, which are the only THREE numbers it is possible to make from the list below?

3    6    9    12    15    18    21    24    27    30

#3TimesTable

The Target Challenge

Can you arrive at 355 by inserting 3, 6, 7, 8 and 9 into the gaps below?

  •  (◯²+◯)×(◯+◯)÷◯ = 355

Answers can be found here.

Click Paul Godding for details of online maths tuition.

This entry was posted in 7puzzleblog.com. Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *