DAY 60:

Today’s Challenge

Read the information below to find each of these three different numbers:

  •  A is the only 2-digit square number that does not contain any odd digits
  •  B is the only 2-digit prime number with both its digits the same
  •  C is the only 2-digit cube number less than 50

. . . then calculate the sum of A, B and C.

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 4th & 6th rows contain the following fourteen numbers:

3   5   10   12   18   20   32   33   35   44   49   54   56   60

Which two numbers, when each is tripled, are also on the list?

Make 60 Challenge

Can you arrive at 60 by inserting 2, 3, 4 and 7 into the gaps on each line?

  •  (+◯)×(+◯) = 60
  •  (◯–◯)×◯× = 60
  •  ◯²+◯²+◯– = 60
  •  ◯²×◯²+◯– = 60

Answers can be found here.

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