Top Tweets for #LogicInMath
Problem of the Day #67:
The areas of the two rectangles in the diagram are 25 cm2 and 13 cm2.
What is the value of x?
#GeometryProblem #RectangleArea #MathProblem #ProblemSolving #Mathematics #AreaCalculation #MathChallenge #LogicInMath #ProblemOfTheDay #CreativeThinking
Problem of the Day #66:
Let d(n) be the digital sum of n∈N.
Solve n+d(n)+d(d(n))=1997.
#NumberTheory #MathProblem #ProblemSolving #Mathematics #DigitalSum #Invariance #MathChallenge #LogicInMath #ProblemOfTheDay #CreativeThinking #MathematicalLogic #CriticalThinking
Problem of the Day #65:
Do there exist positive integers x, and y, such that x+y, 2x+y and x+2y are perfect squares?
The solution link is in the bio.
#NumberTheory #MathProblem #ProblemSolving #Mathematics #PerfectSquares #MathChallenge #LogicInMath #ProblemOfTheDay
Problem of the Day #63:
Find the smallest positive integer n, so that 999999 × n=111…111.
The solution link is in the bio.
#NumberManipulation #MathProblem #EquationSolving #ProblemSolving #Mathematics #IntegerEquation #Problem63 #MathChallenge #LogicInMath #ProblemOfTheDay
Problem of the Day #60:
Let a be an integer such that a+1 is divisible by 3. Prove that 4+7a is divisible by 3.
The solution link is in the bio.
#NumberTheory #MathProof #Divisibility #ProblemSolving #Mathematics #IntegerProperties #MathChallenge #LogicInMath
Problem of the Day #59:
What is the value of (7 − 6 × (−5)) − 4 × (−3) ÷ (−2) ?
The solution link is in the bio.
#ExpressionEvaluation #MathProblem #ArithmeticExpression #ProblemSolving #Mathematics #ExpressionCalculation #Problem58 #MathChallenge #LogicInMath
Problem of the Day #58:
What is the value of
(7−6×(−5))−4×(−3)÷(−2)?
The solution link is in the bio.
Source: UKMT - Intermediate Mathematical Challenge
#ExpressionEvaluation #MathProblem #ArithmeticExpression #MathChallenge #LogicInMath #ProblemOfTheDay #BIDMAS
Problem of the Day #50:
What is the value of the following sum (check the picture)?
The solution link is in the bio.
#SummationProblem #MathProblem #ArithmeticSeries #ProblemSolving #Mathematics #SeriesSum #Problem50 #MathChallenge #LogicInMath
Problem of the Day #42:
Let m and n be integers. Prove that mn(m+n) is an even number.
The solution link is in the bio.
#NumberTheory #MathProof #EvenNumbers #AlgebraicManipulation #ProblemSolving #Mathematics #NumberParity #Proof42 #MathChallenge #LogicInMath #ProblemOfTheDay
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