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The Most Difficult Tasks (page 144)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1431 to 1440. |
Calculate the number 1865
NUMBERMANIA: Calculate the number 1865 using numbers [5, 1, 9, 3, 43, 550] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 4
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B+C
The aim is to place the some numbers from the list (7, 9, 14, 15, 16, 22, 54, 56, 62, 86) 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. Correct answers: 4
#brainteasers #math #magicsquare
Find number abc
If cbacb + 8c650 = 1aabbb find number abc. Multiple solutions may exist. Correct answers: 4
#brainteasers #math
Find number abc
If 9a5a4 + 6bab9 = b5b5c3 find number abc. Multiple solutions may exist. Correct answers: 4
#brainteasers #math
Find number abc
If baa96 - bba71 = 2c2a find number abc. Multiple solutions may exist. Correct answers: 4
#brainteasers #math
Find the right combination
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot. Correct answers: 4
#brainteasers #mastermind
MAGIC SQUARE: Calculate A*B*C
The aim is to place the some numbers from the list (11, 13, 15, 20, 22, 24, 35, 37, 39, 72, 73, 97) 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. Correct answers: 4
#brainteasers #math #magicsquare
MAGIC SQUARE: Calculate A+B*C
The aim is to place the some numbers from the list (10, 14, 15, 18, 19, 23, 27, 31, 35, 92) 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. Correct answers: 4
#brainteasers #math #magicsquare
MAGIC SQUARE: Calculate A+B-C
The aim is to place the some numbers from the list (10, 11, 15, 16, 19, 24, 56, 57, 65, 92) 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. Correct answers: 4
#brainteasers #math #magicsquare
MAGIC SQUARE: Calculate A*B-C
The aim is to place the some numbers from the list (9, 12, 14, 23, 26, 28, 30, 33, 35, 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. Correct answers: 4
#brainteasers #math #magicsquare

