Class 8 Exam  >  Class 8 Questions  >  In the calendar magic trick, if your friend t... Start Learning for Free
In the calendar magic trick, if your friend tells you the sum of a 2x2 grid is 44, what is the formula to express the sum of the numbers in the grid in terms of the top-left number, a?
  • a)
    3a + 12
  • b)
    4a + 16
  • c)
    4a + 12
  • d)
    5a + 10
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In the calendar magic trick, if your friend tells you the sum of a 2x2...
On a calendar, moving one square right adds 1 and moving one row down adds 7, so a 2×2 block with top-left entry a contains: a, a+1, a+7, a+8.
Sum = a + (a+1) + (a+7) + (a+8).
Sum = 4a + 16.
As a check, if the sum is 44 then a = (44 - 16)/4 = 7.
Explore Courses for Class 8 exam
Question Description
In the calendar magic trick, if your friend tells you the sum of a 2x2 grid is 44, what is the formula to express the sum of the numbers in the grid in terms of the top-left number, a?a)3a + 12b)4a + 16c)4a + 12d)5a + 10Correct answer is option 'B'. Can you explain this answer? for Class 8 2026 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about In the calendar magic trick, if your friend tells you the sum of a 2x2 grid is 44, what is the formula to express the sum of the numbers in the grid in terms of the top-left number, a?a)3a + 12b)4a + 16c)4a + 12d)5a + 10Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 8 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the calendar magic trick, if your friend tells you the sum of a 2x2 grid is 44, what is the formula to express the sum of the numbers in the grid in terms of the top-left number, a?a)3a + 12b)4a + 16c)4a + 12d)5a + 10Correct answer is option 'B'. Can you explain this answer?.
Solutions for In the calendar magic trick, if your friend tells you the sum of a 2x2 grid is 44, what is the formula to express the sum of the numbers in the grid in terms of the top-left number, a?a)3a + 12b)4a + 16c)4a + 12d)5a + 10Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 8. Download more important topics, notes, lectures and mock test series for Class 8 Exam by signing up for free.
Here you can find the meaning of In the calendar magic trick, if your friend tells you the sum of a 2x2 grid is 44, what is the formula to express the sum of the numbers in the grid in terms of the top-left number, a?a)3a + 12b)4a + 16c)4a + 12d)5a + 10Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of In the calendar magic trick, if your friend tells you the sum of a 2x2 grid is 44, what is the formula to express the sum of the numbers in the grid in terms of the top-left number, a?a)3a + 12b)4a + 16c)4a + 12d)5a + 10Correct answer is option 'B'. Can you explain this answer?, a detailed solution for In the calendar magic trick, if your friend tells you the sum of a 2x2 grid is 44, what is the formula to express the sum of the numbers in the grid in terms of the top-left number, a?a)3a + 12b)4a + 16c)4a + 12d)5a + 10Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of In the calendar magic trick, if your friend tells you the sum of a 2x2 grid is 44, what is the formula to express the sum of the numbers in the grid in terms of the top-left number, a?a)3a + 12b)4a + 16c)4a + 12d)5a + 10Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice In the calendar magic trick, if your friend tells you the sum of a 2x2 grid is 44, what is the formula to express the sum of the numbers in the grid in terms of the top-left number, a?a)3a + 12b)4a + 16c)4a + 12d)5a + 10Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 8 tests.
Explore Courses for Class 8 exam

Top Courses for Class 8

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev