Number puzzles
| 21) |
Answer: 23 Explanation: Looking at the diagram as two columns, numbers in the left hand column increase by 5, 6, 7 etc, and numbers in the right hand column increase by 6, 7, 8 etc. |
| 22) |
Answer: 6 Explanation: The number at the centre of each segment equals the sum of the numbers on the outside of the opposite segment. |
| 23) |
Answer: 7 Explanation: Reading each row of the diagram as a series of 3 digit numbers, the centre 3 digit number equals the sum of the top 2 numbers, and the sum of the lower 2 numbers. |
| 24) |
Answer: 5 Explanation: In each H shape, the central number is equal to the difference between the sum of the 3 left hand numbers and the sum of the 3 right hand numbers. |
| 25) |
Answer: 0 Explanation: In each row of each grid, multiply the left and right hand numbers together to give a digit value, and write this value in the two centre boxes. |
