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Question
Mark a 3 × 3 box with a palindrome number at the centre on the calendar given below and find the sum of all the numbers in the box. ( 3 marks )
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Solution
Solution:
We know that palindromes are words, numbers or sentences which read the same in forward or reverse order. (0.5 marks)
In this calendar, two palindrome numbers are there: 11 and 22, but we can only take 11 at the centre of a 3 × 3 box. (1 mark)
Mark a 3 × 3 box by taking “11” at the centre, as shown below. (0.5 marks)
Since we know that the sum of numbers will be 9 times the middle number in the 3 × 3 box,
Sum of the numbers = 9 × 11 = 99. (1 marks)
We know that palindromes are words, numbers or sentences which read the same in forward or reverse order. (0.5 marks)
In this calendar, two palindrome numbers are there: 11 and 22, but we can only take 11 at the centre of a 3 × 3 box. (1 mark)
Mark a 3 × 3 box by taking “11” at the centre, as shown below. (0.5 marks)
Since we know that the sum of numbers will be 9 times the middle number in the 3 × 3 box,
Sum of the numbers = 9 × 11 = 99. (1 marks)
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