BRAIN TEASERS
Math (page 4)

Math (page 4)

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 31 to 40.
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Calculate the number 7337

NUMBERMANIA: Calculate the number 7337 using numbers [3, 8, 5, 7, 61, 928] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (6, 8, 9, 27, 29, 30, 48, 57, 59, 60) 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: 1
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#brainteasers #math #magicsquare
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Find number abc

If aaa20 - cacab = 40c4b find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math

Matt's dad picked him up from...

Matt's dad picked him up from school one afternoon. Knowing the parts for the school play were supposed to be posted today, he asked his son if he got a part. Matt enthusiastically announced that he'd gotten a part. "I play a man who's been married for twenty years."
"That's great, son. Keep up the good work and before you know it they'll be giving you a speaking part."
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Calculate the number 2460

NUMBERMANIA: Calculate the number 2460 using numbers [6, 5, 6, 7, 53, 425] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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Find number abc

If cba3b - 282b9 = b28b2 find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 1145

NUMBERMANIA: Calculate the number 1145 using numbers [1, 5, 2, 9, 50, 558] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (4, 6, 14, 23, 25, 33, 34, 36, 44, 62, 91) 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: 1
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#brainteasers #math #magicsquare
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Find number abc

If 77b05 - 6ba61 = 1bcaa find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 9848

NUMBERMANIA: Calculate the number 9848 using numbers [7, 8, 4, 9, 11, 887] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If c5ba0 - 4ab4b = 23bca find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
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Industrial pollution

In 1876, a Royal Commission on Noxious Vapours was appointed by the British government to inquire into the management of chemical works, to determine the effects of certain gases and vapours emitted, and investigate means of prevention. The Commission inspected alkali works, cement works, chemical manure works, copper, glass, lead, salt and metal works, coke ovens and potteries. In their report, issued in Aug 1878, they recommended increasing the number of visits by inspectors, recording any escapes of gases, the publication of inspectors' reports, and more stringent regulations, despite witnesses arguing that noxious vapours were the inevitable and unalterable cost of national prosperity.[* p.251]
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