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Purnima Thatey
Published on 22 Feb 2022
Sarwar Classes
Published on 01 May 2020
Purnima Thatey
Published on 16 Jan 2022
Blogs
Compound interest (or compounding interest) is interest calculated on the initial principal, which also includes all of the accumulated interest of previous periods of a deposit or loan.
P = principal amount (the initial amount you borrow or deposit)
r = annual rate of interest (as a deci...
Published: 12 Aug 2019
What is Cramer’s Rule and how to solve linear equation problems using Cramer’s rule?In mathematics, to solve linear equations, we use matrix form. Matrix is the rectangular array of elements enclosed in brackets “[]”. There are some methods and rules of matrix used to so...
Published: 14 Feb 2022
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...
Published: 28 Sep 2019