DAY 220:

Today’s Challenge

The ten letters, A-J, in the following two sections each contains a calculation.  Which is the only letter that has the same answer in both sections?

  • Section 1

E:6÷6   I:5+1   G:3+2   A:102   J:4+3   C:5×1   F:6÷3   B:84   H:9÷3   D:4×2

  • Section 2

H:43   A:6÷1   I:3×3   B:61   F:64   J:8÷2   E:5×2   G:4×1   D:93   C:2+1

The 7puzzle Challenge

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

The 3rd & 4th rows of the playing board contain the following fourteen numbers:

3    10    13    25    32    35    36    42    44    45    54    60    66    80

What is the difference between the smallest and largest odd numbers?

Make 220 Challenge

Can you arrive at 220 by inserting 5, 8, 9 and 10 into the gaps below?

◯²+◯²+5×(◯+◯) = 220

Answers can be found here.

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