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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...
वस्तु एवं सेवा कर (जीएसटी) से संबंधत बार-बार पूछे जाने वाले प्रश्न वस्तु एवं सेवा कर (जीएसट) से संबंधत प्रायः पूछ...
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...