“PROBLEM BASED ON AGES”. | Important SHORTCUT and TRICKS for all competitive examination.

Today we are going to talk about some important arithmetic formulae on PROBLEM BASED ON AGES , which is very important for types of competitive examination. Students are advised to learn these formulae and keep practicing with it.

SOME IMPORTANT SUTRAS
 
1). If t yrs earlier , the age of the father is x times the age of his son. At present time , the age of father is y times the age of his son. Then their present age ;
son age = t(x-1)/x-y , father age = y[t(x-1)/x-y] years respectively.
2). If the present age of the father is x time the age of his son, t years later , the age of father become y times the age of his son , then their present age ;
  Son age = x[t(y-1)/x-y] and father age = t(y-1)/x-y
  years respectively.
3). If t1 yrs earlier , the age of the father is x times the age of his son. and hence t2 years later, the age of father is y times the age of his son. Then their present age ;
 Son age = t1(x-1)+t2(y-1)/x-y , and father age =
   t1y(x-1)+t2x(y-1)/x-y
4). If the ratio of the present age of A and B is x:y, and m years earlier, their ratio are a:b , then equation of solution is; ,, x-m/y-m = a/b
5). If the ratio of the present age of A and B is x:y, and m years laters, their ratio are a:b , then equation of solution is; ,, x+m/y+m = a/b
6). If m years earlier, the ratio of the age of A and B is x:y, and n years later, their ratio are a:b , then equation of solution is; ,, x+n+m/y+n+m = a/b
7). If the ratio of age of A and B is a:b and sum of their ages is S , their ages is ;
age of A = Sa/a+b , and age of B = Sb/a+b
8). If M is as smaller than N , as he is greater than P , and sum of ages of N and P is S , such that P<M<N , then the age of M is = S/2
This chapter contain limited no of formulae , the best way to deal with such type of questions is that , you have to learned to make equations by given data in one or two variables and solve it by proper methods.

Suchit prajapati

Suchit Prajapati is the Founder and CEO of Laws Of Nature. He is also an Entrepreneur, motivational speaker, spiritual thinker, affiliate marketer and physics enthusiast.

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