
MATHS TRICKS
February 23, 2025 at 05:29 AM
*✅SSC CGL Maths: Top 10 Most Important Formulas 🔥*
1️⃣ Speed, Distance & Time:
➤ Speed = Distance / Time
➤ Distance = Speed × Time
➤ Time = Distance / Speed
2️⃣ Average:
➤ Average = (Sum of Observations) / (Number of Observations)
3️⃣ Percentage to Fraction Conversion:
➤ x% = x/100
4️⃣ Profit & Loss:
➤ Profit % = (Profit / Cost Price) × 100
➤ Loss % = (Loss / Cost Price) × 100
5️⃣ Simple Interest (SI):
➤ SI = (P × R × T) / 100
6️⃣ Compound Interest (CI):
➤ CI = P(1 + R/100)^T - P
7️⃣ Algebraic Identities:
➤ (a + b)² = a² + 2ab + b²
➤ (a - b)² = a² - 2ab + b²
➤ a² - b² = (a - b)(a + b)
8️⃣ Time & Work:
➤ Work = Time × Efficiency
➤ Total Work = LCM of Given Work
9️⃣ Ratio & Proportion:
➤ a : b = c : d ⟹ a/b = c/d
➤ a = (b × c) / d
🔟 Mensuration (2D & 3D):
➤ Area of Circle = πr²
➤ Circumference of Circle = 2πr
➤ Volume of Sphere = (4/3)πr³
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