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Question

Vimal asked Dharani to find the total of all the numbers insides the 3×3 box marked in the calendar. Dharani found it very quickly using a easy method. What is her answer?

  1. 180

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Solution

The correct option is A 180
Easy way to find the total of all the numbers inside the 3×3 box inside the calendar:

1. Select the middle number.
2. Multiply it with 9.

The answer is the total.
In this case,
1. Middle number is 20.
2. 9×20=180

180 is the total of all the numbers inside the 3×3 box.

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