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प्रश्न
Is this magic possible on a 10 × 10 number chart? Go to the Chapter ‘Fun with Numbers’ and check.
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उत्तर
check with a 10 × 10 number chart
Yes, the magic works in a 10 × 10 number chart also.
The cross lines- 1 + 12 + 23+ … + 89+ 100 = 505
and 10 + 19 + 28+ … + 82 + 91 = 505
As there is no middle line, we have to get average sum of both horizontal lines
5 + 15 + 25+ … + 95 and 6 + 16 + 26 + … 96 = 505
Average sum of both vertical lines
41 + 42 + 43 + … + 50 and 51 + 52 + 53 + … + 60 = 505.
Thus, the magic works here as well.
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संबंधित प्रश्न
Look at the birth certificate of Bincy.
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Look at the birth certificate of Bincy.
How many months old was Bincy on 2 August 2002?
Let us look at the calendar for the year 2020.
How many days make a week?
Let us look at the calendar for the year 2020.
- How many weeks are there in July?
- Is it true for all the months?
Let us look at the calendar for the year 2020.
Make a circle on these dates in the Calender:
- 26th January
- 14th November
- 31st December.
Is there something special about these dates?
Fill in the blanks with the correct year:
| 2017 | 2020 | 2019 | 2018 | 2021 | 2023 |
Which year was it two year back?
Fill in the blanks with the correct year:
| 2017 | 2020 | 2019 | 2018 | 2021 | 2023 |
Which year will come after 3 years?
See if this magic works for other lines which have five numbers. What about five numbers on a slanting line? Try this trick with your family and friends. Can you find other magic patterns in the calendar?
Colour all the Sundays in red.
Can there be 6 Sundays in a month? Why?
