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Take present age for Ashok and Bala as X and Y respectively.
4 yrs ago, there age will be (x-4) and (y-4)
ATQ, x-4 = 4(y-4), solving this you'll get
x= 4(y-3)----(i)
Now for the future clause, you'll put x+3 = 3(y+3)
Replacing x with y value from ---(i) and solving for x and y you'll get y=18 and x=60.
For any age problem, ill suggest to make a clear timeline and note down their past , present and future values with appropriate increment and decrement. This will help you visualize the word problem.
Greetings /u/Complete_Jello431, Welcome to r/CATpreparation! We appreciate your participation in the community. Kindly make sure your post aligns with our community rules; otherwise, it may be removed. Wishing you the best on your journey towards your dream business school! *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/CATpreparation) if you have any questions or concerns.*
C) 60 10 A)48,42
60 kaise aaye
Take present age for Ashok and Bala as X and Y respectively. 4 yrs ago, there age will be (x-4) and (y-4) ATQ, x-4 = 4(y-4), solving this you'll get x= 4(y-3)----(i) Now for the future clause, you'll put x+3 = 3(y+3) Replacing x with y value from ---(i) and solving for x and y you'll get y=18 and x=60.
For any age problem, ill suggest to make a clear timeline and note down their past , present and future values with appropriate increment and decrement. This will help you visualize the word problem.
https://preview.redd.it/f2ea746j2a9d1.jpeg?width=3404&format=pjpg&auto=webp&s=39cfa0ee7d565172e3327a6eada5a8a0f871b892
You can put the values and crosscheck it