Math, asked by chirag659, 1 year ago

kriti father is 5times as old as kriti.After 5 years father will be three times as old as kriti.find their present ages.​

Answers

Answered by learner35
61

Answer:

LET THE AGE OF KIRTI= x

Age of father= 5x

After 5 years,

AGE OF KIRTI = x+5

Age of father = 3(x+5)

So,according to question,

x+5= 3(x+5)

x+5= 3x+15

2x= 10

x=10/2=5

Therefore present age of kirti=5 years

Present age of father= 5x= 5*5=25 years Answer.

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Answered by Anonymous
109

Solution:

Let Kriti's Father age be x years.

And Kriti's age be y years.

Now, according to question:

=> x = 5y      .........(1)

After 5 years,

=> x + 5 = 3(y + 5)

=> x + 5 = 3y + 15

=> x - 3y = 10      ...........(2)

By using Substitution method we will solve these equations,

=> x = 5y      .........(1)

=> x - 3y = 10      ...........(2)

Put the value of x in equation (2), we get

=> x - 3y = 10

=> 5y - 3y = 10

=> 2y = 10

=> y = 10/2

=> y = 5

Now, put the value of y in Equation (1)

=> x = 5y

=> x = 25

Hence,

=> Kriti's Father age is 25 years.

=> Kriti's Age is 5 years.

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