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Math (page 13)These are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 121 to 130. |
Find number abc
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If 7b0a8 + 544ab = cb65a0 find number abc. Multiple solutions may exist. Calculate the number 1085
. Each of the numbers can be used only once.','/archive/2026/04/03/numbermania-1775174701.png','/calculate-the-number-1085/8676'))
NUMBERMANIA: Calculate the number 1085 using numbers [8, 1, 6, 6, 51, 677] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A-B*C
 into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B*C.','/archive/2026/04/02/magic-square-1775088324.png','/MAGIC-SQUARE-Calculate-A-B-C/8675'))
The aim is to place the some numbers from the list (11, 13, 16, 18, 20, 22, 27, 57, 59, 64) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B*C. 
Mid Semester Final Exam
One night Jack Evans, along with his 3 university friends went out drinkinig till late night, as many college students are prone to do, and didn't study for their test, which, of course, was scheduled for the next day.
In the morning they thought of a plan. They made themselves look as dirty and weird as they could with grease and dirt.
They went up to the dean and explained that they had gone out to a wedding last night and on their return the tire of their car burst. They continued to explain how they had to push the car all the way back and that they were in no condition to appear for the test.
The dean, being a compassionate human being said that they could take the test after 3 days. The students graciously replied that they'd be ready by that time.
On the third day, they appeared before the dean. The dean explained that since this was a special test all four were required to sit in separate classrooms for the duration of the exam.
They all agreed as they had prepared well in the last three days. The test consisted of 5 questions with total of 100 points:
MID SEMESTER COURSEWORK EXAMINATION
INSTRUCTIONS : All questions are required. Any inconsistencies on any of the questions among the four students will result in all the candidates getting a zero mark.
Q.1. Write down your name. ----- (2 POINTS) Q.2. Write the name of the bride and groom at the wedding you attended. ----- (30 POINTS) Q.3. What type of a car were you driving? ------(20 POINTS) Q.4. Which tire burst? ------- (28 POINTS) Q.5. Who was driving? ------ (20 POINTS)
Find number abc
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If b6b62 + 7acba = a558b find number abc. Multiple solutions may exist. 
Calculate the number 2924
. Each of the numbers can be used only once.','/archive/2026/03/30/numbermania-1774829101.png','/calculate-the-number-2924/8672'))
NUMBERMANIA: Calculate the number 2924 using numbers [9, 5, 7, 5, 18, 597] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If a350b - 25a28 = 3c8ca find number abc. Multiple solutions may exist. Calculate the number 714
. Each of the numbers can be used only once.','/archive/2026/03/27/numbermania-1774569901.png','/calculate-the-number-714/8669'))
NUMBERMANIA: Calculate the number 714 using numbers [5, 3, 7, 6, 27, 116] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A+B+C
 into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B+C.','/archive/2026/03/26/magic-square-1774483526.png','/MAGIC-SQUARE-Calculate-A-B-C/8668'))
The aim is to place the some numbers from the list (12, 13, 14, 15, 22, 24, 43, 44, 53, 77) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B+C. Find number abc
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If b85c1 - 22581 = 25a2c find number abc. Multiple solutions may exist. Calculate the number 2628
. Each of the numbers can be used only once.','/archive/2026/03/23/numbermania-1774224301.png','/calculate-the-number-2628/8665'))
NUMBERMANIA: Calculate the number 2628 using numbers [3, 3, 7, 7, 83, 205] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
