DAY 298:

The Main Challenge

Read the following facts and work out which number I am today:

  •  I am a 2-digit number,
  •  One of my digits is odd, the other is even,
  •  I have six factors,
  •  I am a multiple of 5 but not a multiple of 10.

Who am I?

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 4th & 5th rows contain the following fourteen numbers:

3   6   7   10   16   21   32   35   44   50   54   60   81   84

List FOUR sets, each containing three numbers, that all have a sum of 100.

The Factors Challenge

Which of the following numbers are factors of 298?

4     6     8     10     12     14     16     18    None of them

The Mathematically Possible Challenge

Using 38 and 10 once each, with + – × ÷ available, which are the only THREE numbers it is possible to make from the list below?

5    10    15    20    25    30    35    40    45    50

#5TimesTable

The Target Challenge

Can you arrive at 298 by inserting 1, 2, 3, 4 and 5 into the gaps below?

  •  (◯³×◯)+(◯×◯×◯) = 298

Answers can be found here.

Click Paul Godding for details of online maths tuition.

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