Question

MATH QUESTIONS PLEASE SOLVE​

Answer 1

Answer:

Present age of RAHUL is 10.

Present age of ARUN is 15.

Step-by-step explanation:

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Answer 2

Answer:

Let the age of Raju be x years.

And the age of Rahul is y years.

Now it is given that Raju is 5 years younger than Rahul.

Now construct the linear equation according to given information we have,

Age of Raju is equal to the age of Rahul minus five.

⇒x=y−5…………………….. (1)

Now it is also given that four years later Rahul will be twice as old as Raju.

Now again construct the linear equation according to given information we have,

⇒y+4=2(x+4)…………………….. (2)

Now put the value of x from equation (1) in equation (2) we have,

⇒y+4=2(y−5+4)

Now simplify the above equation we have,

⇒y+4=2(y−1)⇒y+4=2y−2⇒2y−y=4+2

⇒y=6 Years.

Now put the value of y in equation (1) we have,

⇒x=6−5=1

Step-by-step explanation:

Let the age of Raju be x years.

And the age of Rahul is y years.

Now it is given that Raju is 5 years younger than Rahul.

Now construct the linear equation according to given information we have,

Age of Raju is equal to the age of Rahul minus five.

⇒x=y−5…………………….. (1)

Now it is also given that four years later Rahul will be twice as old as Raju.

Now again construct the linear equation according to given information we have,

⇒y+4=2(x+4)…………………….. (2)

Now put the value of x from equation (1) in equation (2) we have,

⇒y+4=2(y−5+4)

Now simplify the above equation we have,

⇒y+4=2(y−1)⇒y+4=2y−2⇒2y−y=4+2

⇒y=6 Years.

Now put the value of y in equation (1) we have,

⇒x=6−5=1