BRAIN TEASERS
Math (page 171)

Math (page 171)

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 1701 to 1710.
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Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 141
The first user who solved this task is Nasrin 24 T.
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Find number abc

If 15cb4 + a14a4 = ba8c8 find number abc. Multiple solutions may exist.
Correct answers: 41
The first user who solved this task is Nasrin 24 T.
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How many triangles are there...

How many triangles are there in the picture?
Correct answers: 97
The first user who solved this task is Nasrin 24 T.
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Bill, Jim, and Scott were at a...

Bill, Jim, and Scott were at a convention together and were sharing a large suite on the top of a 75-story skyscraper. After a long day of meetings they were shocked to hear that the elevators in their hotel were broken and they would have to climb 75 flights of stairs to get to their room. Bill said to Jim and Scott, let's break the monotony of this unpleasant task by concentrating on something interesting. I'll tell jokes for 25 flights, and Jim can sing songs for 25 flights, and Scott can tell sad stories the rest of the way. At the 26th floor Bill stopped telling jokes and Jim began to sing. At the 51st floor Jim stopped singing and Scott began to tell sad stories. "I will tell my saddest story first," he said. "I left the room key in the car!"
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A small number of cards has ...

A small number of cards has been lost from a complete pack. If I deal among four people, three cards remain. If I deal among three people, two remain and if I deal among five people, two cards remain. How many cards are there?
Correct answers: 34
The first user who solved this task is Thinh Ddh.
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#brainteasers #math #riddles
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 460
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #riddles
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Calculate the number 3094

NUMBERMANIA: Calculate the number 3094 using numbers [9, 6, 2, 5, 70, 425] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Find the missing number

Look at the numbers given in the picture and find the missing number.
Correct answers: 76
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math
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Find number abc

If 7c55c + 4c756 = a27ba4 find number abc. Multiple solutions may exist.
Correct answers: 33
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math
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Calculate the number 5292

NUMBERMANIA: Calculate the number 5292 using numbers [6, 6, 6, 7, 83, 902] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Nílton Corrêa de Sousa.
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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 (11, 13, 18, 19, 21, 26, 33, 35, 40, 52) 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: 12
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #magicsquare
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Thomas Andrew Knight

Born 12 Aug 1759; died 11 May 1838 at age 78.British horticulturalist who initiated the field of fruit breeding, experimental horticulture while also studying plant physiology with botanical experiments. He made studies on the movement of sap in plants, the nature of the cambium, and phototropism in tendrils. To investigate the geotropism of roots and stems, he invented a machine, rotating to simulate gravity with centrifugal force in either horizontal or vertical position. In each case, he found the roots grew outwards and the stems inwards towards the centre. Forty years before Mendel, he studied the effects of pollen in the garden pea on seed characters. In horticulture, he investigated controlled environmental culture (greenhouses), plant nutrition, fertilization, and pest control.«
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