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# Author Archives: 7puzzle

## DAY 45:

Today’s Challenge If you multiply two whole numbers together and then add 4, the result is 40. Which one of the following could NOT be the sum of the two whole numbers you initially multiplied? 12 13 … Continue reading

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## DAY 44:

Today’s Challenge If the number sequence 2, 5, 8, 11, 14 . . . is continued, which is the only number from the following list that will appear later in the sequence? 22 34 43 57 65 … Continue reading

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## DAY 43:

Today’s Challenge Using the numbers 2, 4 and 6 once each, together with + – × ÷, find the SIX target numbers from the following list that are mathematically possible to make: 12 14 16 18 20 … Continue reading

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## DAY 42:

Today’s Challenge You’ve rolled the numbers 2, 4 and 6 with your three dice. Using these once each, with + – × ÷ available, find the three target numbers from 1-10 that it is NOT possible to make. Visit Roll3Dice.com for further details. The 7puzzle Challenge The … Continue reading

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## DAY 41:

Today’s Challenge When a certain 4-digit number is multiplied by 4, its digits appear in reverse order. It also has both of the following properties: its first digit is a quarter of the last one, and its second digit is … Continue reading

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## DAY 40:

Today’s Challenge In all four groups below, it is possible to make 24 by using the four numbers once each, with + – × ÷ available. Can you show how to achieve the target number of 24 in each case? 3 … Continue reading

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## DAY 39:

Today’s Challenge By allocating each letter of the English alphabet a numerical value as follows, A=1 B=2 C=3 . . . Z=26, the value of the word CAT would be 24, calculated by doing 3+1+20. Following this rule, what is … Continue reading

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## DAY 38:

Today’s Challenge Firstly, allocate each letter of the English alphabet a numerical value as follows, A=1 B=2 C=3 . . . Z=26. If the value of the word DOG is 26 by calculating 4+15+7 for example, which two of the … Continue reading

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## DAY 37:

Today’s Challenge If you add 1+4, then to that answer add 9, then keep on adding consecutive square numbers to the previous total, what is the first answer you reach that is greater than 200? (Hint: Square numbers are 1 (1×1), 4 (2×2), … Continue reading

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## DAY 36:

Today’s Challenge You’ve rolled the numbers 2, 3 and 4 with your three dice. Using these once each, with + – × ÷ available, what is the lowest positive whole number it is NOT possible to make? Visit Roll3Dice.com for further details. The 7puzzle Challenge The … Continue reading

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