Aptitude :: Compound Interest

Let Principal = P, Rate = R% per annum, Time = n When interest is compound Annually:    Amount = P 1 + R n 100 When interest is compounded Half-yearly:     Amount = P 1 + (R/2) 2n 100 When interest is compounded Quarterly:     Amount = P …

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The money  borrowed or lent out for a certain period is called the principal or the sum. Interest: Extra money paid for using other’s money is called interest. Simple Interest (S.I.): If the interest on a sum borrowed for certain period is reckoned uniformly, then it is called simple interest. Let Principal = P, Rate …

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TIME AND DISTENCE FORMULA 1. Speed, Time and Distance: Speed = Distance , Time = Distance , Distance = (Speed x Time). Time Speed 2. km/hr to m/sec conversion: x km/hr = x x 5 m/sec. 18 3. m/sec to km/hr conversion: x m/sec = x x 18 km/hr. 5 …

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Problems on Trains

Problems on Trains (Formula) 1. km/hr to m/s conversion: a km/hr =a * 5/18 m/s. 2. m/s to km/hr conversion: a m/s =a * 18/5 km/hr. 3. Formulas for finding Speed, Time and Distance 4. Time taken by a train of length l metres to pass a pole or standing …

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APTITUDES   Problems on Trains Time and Distance Height and Distance Time and Work Simple Interest Compound Interest Profit and Loss Partnership Percentage Problems on Ages Calendar Clock Average Area Volume and Surface Area Permutation and Combination Numbers Problems on Numbers Problems on H.C.F and L.C.M Decimal Fraction Simplification Square …

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