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1. Principal : The money borrowed or lent out for a certain period is called the principal or the SUM. 2. Interest : Extra money paid for using other’s money is called interest. Interest is the extra money paid by the borrower to the owner (lender) as a form of compensation for the us...
1. Basics Speed = Distance / Time Time = Distance / Speed Distance = (Speed × Time) 2. Convert kilometres per hour(km/hr) to metres per second(m/s) x km/hr = x * 5/18 m/sec 3. Convert metres per second(m/s) to kilometres per hour(km/hr) x m/sec = x * 18...
Problems on Ages (Quick Tips and Tricks) 1) If the current age of a person be X, then - age after n years = X + n - age n years ago = X – n - n times the age = nX - If ages in the numerical are mentioned in ratio A : B, then A : B will be AX and BX 2) If sum of ages...