June 17, 2018

Problems on Ages


Problems on ages come both in bank exams and SSC exams, but the frequency that is the number questions on problems on ages is not very high. There are so many formulas on age problems which definitely reduce your time in examination hall but what if you don’t remember the formula at the time of exam or you can not recognize the formula? Well, this is why I am sharing some tricks to solve problems on ages with question and answers.

Q1.  A father is twice as old as his son. 20 years beck he was twelve times as old as his son. What is the present age of father?


Answer: Here I have tried to explain the whole process graphically.



problems on ages
Figure 1

Then,


age calulator
Figure 2
Now, here we have calculated that the time period is 10, but we have been given that the time period is 20 years. 
So
(20/10) * 22 
[father’s present age as derived in the figure above]
= 2 * 22 = 44 years.

Q2. 5 years ago, age of Sachin was 4 times the age of Vineet and after 10 years, Sachin will be twice as old as Vineet. Find the present ages of Vineet.

Answer: Graphical Presentation,

age calculator
Figure 3
After that,

Figure 4

Now, here we have found out the total time period, from 5 years ago to 10 years after, which is 2. But according to the questions the total time period is 15 years.
So, the present age of Vineet is

(15/2)  * 1 + 5 
7.5 + 5 = 12.5 years.





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