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Arithmetic
Percentages & Fractions
Fraction-to-percentage tables (1/2 to 1/20), AB constant product rule, and successive percentage change shortcuts.
Master Quantitative Aptitude for CAT, MBA CET & IPMAT with high-density formula cards, Vedic speed math shortcuts, and Level 0 solved foundation examples.
Fraction-to-percentage tables (1/2 to 1/20), AB constant product rule, and successive percentage change shortcuts.
Scaling ratios, Componendo & Dividendo properties, direct & inverse variation, and income-expenditure shortcuts.
Equal distribution model, Net Deviation method, weighted average shortcuts, and group addition/removal rules.
Cost Price, Marked Price, Multiplier Method, and Dishonest Dealer faulty weight formulas.
Alligation Cross Rule (D-M)/(M-C), weighted average shortcut, and repeated liquid replacement V(1-x/V)^n formula.
Distance = Speed x Time, unit conversions, relative speed, and trains crossing rules.
Total Distance / Total Time rule, 2ab/(a+b) harmonic mean for equal distances, and multi-stage journeys.
Crossing poles & platforms, train length addition rules, 5/18 unit conversions, and relative speed crossing times.
Downstream (B+S) and Upstream (B-S) rules, still water boat speed (D+U)/2, and stream speed (D-U)/2 formulas.
Opposite direction S1+S2, Same direction |S1-S2|, Police-thief chase shortcuts, and head-start gap rules.
Total Work LCM Method, Efficiency rates, Man-Days formula, and Alternate days work shifts.
Inlet and outlet pipe rules, Net Filling Rate, Tank Capacity LCM method, and Leakage shortcuts.
Compendo & Dividendo rules, variations, and Alligation Cross Rule for weighted average mixtures.
Constant interest calculations, Principal/Rate/Time formula rearrangements, and doubling time shortcuts.
Power of compounding, 2-year and 3-year CI-SI difference shortcuts, multipliers, and compounding frequency rules.
Standard form ax+b=c (a≠0), balanced scale operations, isolating variables, and word problem translation shortcuts.
Standard form ax²+bx+c=0, discriminant D=b²-4ac rules, quadratic formula x=(-b±√D)/2a, and root shortcuts.
Fundamental log rules, Base Change Theorem, exponential conversions, digit calculations, and CAT shortcuts.
Arrangement rules, factorials, $^nP_r$ formula, circular seating, tie method for restricted seating, and CAT shortcuts.
Selection rules, $^nC_r$ formula, symmetry identity $^nC_r = ^nC_{n-r}$, committee formation, and CAT shortcuts.
Favorable vs total outcomes, Complement Rule $1 - P(\text{None})$, coins, dice & deck of cards rules, and CAT shortcuts.
2-set & 3-set overlap formulas, $n(A \cup B)$ rules, "Only A" logic, "Neither" calculations, and survey shortcuts.
Constant difference $d$, $a_n = a + (n-1)d$ formula, sum of $n$ terms $S_n = (n/2)(a+l)$, and term count shortcuts.
Common ratio $r$, $a_n = a \cdot r^{n-1}$, finite sum $S_n$, infinite sum $S_\infty = a/(1-r)$, and multiplier tricks.
Reciprocal AP conversion rules, $H_n = 1/[a + (n-1)d]$, and Harmonic Mean $2ab/(a+b)$ for average speed.
$(a+b)^n$ expansion rules, general term $T_{r+1} = \binom{n}{r}a^{n-r}b^r$, middle term positions, and Pascal's Triangle.
Vedic multiplication, cube roots in 5 seconds, squares up to 50, and Pythagorean Triplets.
Triangles, Circles, Inradius & Circumradius formulas, and 2D/3D Mensuration shortcuts.
Central value distribution, weighted averages, assumed mean deviation method, and replacement shortcuts.