KR MATH

🧮 Math Olympiad Challenge – Question & Solution Question: If 7x² = 49, then what is x² – 5 =  ? Step-by-step Solution: Start with the given equation: 7x² = 49 Divide both sides by 7: x² = 7 Now subtract 5: x² – 5 = 7 – 5 = 2 ✅ Final Answer = 2 💡 Tip: This is a classic Olympiad-style problem that tests algebra basics with a twist! 👉 Challenge: Can you solve it in less than 10 seconds without pen and paper? Comment your time below 👇 📌 Follow me on Instagram  @krmath for daily math challenges !

🧠 Viral Puzzle: “Don’t use pen and paper” — Full Solution Explained A viral math puzzle is trending on Instagram, YouTube Shorts and Facebook Reels. Thousands of people are confused by this simple-looking question: X = 2   X – Y = 3   2Y = ? Many people answered quickly and got it wrong because the caption says **“Don’t use pen and paper”** which tricks the mind. ✔ Step-by-Step Solution 1️⃣ From the first equation: X = 2 2️⃣ Put the value of X in the second equation: X – Y = 3 2 – Y = 3 3️⃣ Solve for Y: 2 – Y = 3   –Y = 1   Y = –1 4️⃣ Now calculate 2Y: 2Y = 2 × (–1)   2Y = –2 ✅ Final Answer    2Y = –2   ❗ Why most people get it wrong ? Because the instruction **“don’t use pen and paper”** forces the brain to rush. This puzzle proves that even simple questions need logical and calm thinking. 📌 Conclusion This trending puzzle teaches us : “Logic matters more than speed.” Try sharing this puzzle with others and ...

Only 1% can solve this 😳🧠Are you smarter than a genius?Solve this Math Olympiad question & comment your answer 👇Tag your friend who thinks they’re a math master! 🧮

Question : Find the value of 32^x · 8^y if 5x + 3y = 3   Step-by-Step Solution Step-by-Step Solution: Given equation: 5 x + 3 y = 3 5x + 3y = 3 5 x + 3 y = 3 Write bases in powers of 2: 32 = 2 5 , 8 = 2 3 32 = 2^5, \quad 8 = 2^3 32 = 2 5 , 8 = 2 3 Substitute into the expression: 32 x ⋅ 8 y = ( 2 5 ) x ⋅ ( 2 3 ) y 32^x \cdot 8^y = (2^5)^x \cdot (2^3)^y 3 2 x ⋅ 8 y = ( 2 5 ) x ⋅ ( 2 3 ) y Simplify powers: = 2 5 x ⋅ 2 3 y = 2^{5x} \cdot 2^{3y} = 2 5 x ⋅ 2 3 y Combine exponents (since base is same): = 2 5 x + 3 y = 2^{5x + 3y} = 2 5 x + 3 y From the given equation: 5 x + 3 y = 3 5x + 3y = 3 5 x + 3 y = 3 Substitute: 2 5 x + 3 y = 2 3 2^{5x+3y} = 2^3 5 x + 3 y = 3 Simplify: = 8 ✅ Final Answer                    32^x · 8^y = 8

Question: If line m ∥ n, then find the value of x in the figure below Math Olympiad Geometry Problem with parallel lines solution : 🔎 Step-by-Step Solution From the figure: - Left base angle = 2y - Right base angle = 84° - Outside angle at top = 3y - Inside angle at top = x Given: 3y = 84° ⇒ y = 84 ÷ 3 = 28° Now, left base angle = 2y = 56° Using triangle angle sum property: x + 56° + 84° = 180° x + 140° = 180° x = 40° ✅ Final Answer x = 40° 🔗 Follow KRMath 💡 For more daily math challenges and solutions: 📖 Blog: KRMath Blog 📸 Instagram: @krmath01 🎥 YouTube: KRMath