Chapter 6 Number Play - Part 5

If 5 is added to every number in a 3x3 magic square (original sum 15), what is the new magic sum?

Type: MCQ • Marks: 1
If 5 is added to every number in a 3x3 magic square (original sum 15), what is the new magic sum?
Options
A. 30
B. 20
C. 25
D. 45
Explanation
Adding 5 to each of the 3 numbers in a row increases the row sum by 3 * 5 = 15. New sum = 15 + 15 = 30.
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Class 7th Ganita Prakash 1

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