Question

In a puzzle only 3 numbers are given of a square matrix taken from a calendar. What will be the sum of all the 9 numbers?

• A. 151
• B. 152
• C. 153
• D. 154

Answer 1

The correct option is C 153

A week has 7 days. So, the number written below '10' will be '7' greater than it.
So, the number written below '10'
= 10 + 7
= 17
The number at the centre
= 17
The sum of all the numbers written in the highlighted region of the calendar
= 9 $\times$ the central number
= 9 $\times$ 17
= 153