Number patterns · SET 17

Question 1

The combined age of Archibald and Bertie is 19, of Archibald and Charlie is 37, and of Bertie and Charlie is 52. How old is Charlie? Answer with a natural number.

Question 2

At a dog show the dogs' numbers were: corgi 11, alsatian 20, terrier 16. What was wolfhound's number? Answer with a natural number.

Question 3

What number is missing?

38 (1924) 96
64 (3217) 68
48 (?) 56 Answer with a natural number.

Question 4

Sally had a third again as many as David, who had a third as many again as Francis. Altogether they had 111. How many did Sally have? Answer with a natural number.

Question 5

The combined age of Alice and Barbara is 132, of Barbara and Catherine is 152, and of Alice and Catherine is 142. How old is Catherine? Answer with a natural number.

Question 6

Simplify and find the value of x: 7 + 26 x 29 + 8 / 2 = x (multiplication and division first). Answer with a natural number.

Question 7

What number should replace the question mark? Answer with a natural number.

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Question 8

What number should replace the question mark? Answer with a natural number.

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Question 9

What number should replace the question mark? The numbers are arranged in four columns A-D. Answer with a natural number.

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Question 10

What number should replace the question mark?

48 6 13 21
60 10 15 21
33 11 16 19
42 14 17 20
72 12 14 ? Answer with a natural number.

Question 11

What number continues this sequence? 59, 73, 83, 94, 107, ? Answer with a natural number.

Question 12

Which circle replaces the question mark? Choose from the numbered circles 1-8 shown in the figure.

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Question 13

Which number completes the puzzle? Answer with a natural number.

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Question 14

Which number replaces the question mark and completes the puzzle? Answer with a natural number.

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Question 15

Which number is missing from the bottom triangle? Answer with a natural number.

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Question 16

Which number replaces the question mark and completes the puzzle? Answer with a natural number.

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Question 17

Which number replaces the question mark and completes the puzzle? Answer with a natural number.

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Question 18

What is missing from the last hexagon? Answer with a natural number.

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Question 19

Which number replaces the question mark and completes the puzzle? Answer with a natural number.

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Question 20

What is missing from the last circle? Answer with a natural number.

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