Sujata and Nikhila are playing a game. Sujata took one calendar and marked a 3×3 box in it. She asked Nikhila to calculate the total of all the numbers inside the box. What is the total?
A
99
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B
79
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C
49
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D
81
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Solution
The correct option is D 81 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 9.
2. 9×9=81
∴ 81 is the total of all the numbers inside the 3×3 box.