Question

maria's present age is y years answer the following questions (1) what will be his age 9years from now? (2) what was her age 4 years back (3) Maria's grandfather is 4 times Mario present age plus 6. What is the grandfather age​

Answer 1

Answer :-

1. (y + 9) years
2. (y - 4) years
3. (4y + 6) years

Given :-

• Maria's present age is y years.
• Maria's grandfather is 6 more than 4 times Maria's present age.

To Find :-

• Her age after 9 years from now.
• Her age 4 years ago.
• Her grandfather's age

Solution :-

Given that the present age of Maria is y years, Then after 9 years, Her age will be

⇒ Maria's age after 9 years = Present age + 9 years

⇒ Maria's age after 9 years = y + 9

∴ After 9 years, Her age will (y + 9) years.

Now, For finding her age 4 years ago, we should subtract 4 years from her present age to get the required answer.

⇒ Maria's age 4 years ago = Present age - 4 years

⇒ Maria's age 4 years ago = y - 4

∴ Maria's age 4 years ago was (y - 4) years.

In the case of grandfather, we have the following condition:-

• Maria's grandfather is 6 more than 4 times of Maria's present age.

This can be expressed as,

⇒ Grandfather's age = 4( Maria's age) + 6

We have Maria's present age as y years, So

⇒ Grandfather's age = 4y + 6

∴ Hence, Maria's grandfather's age is (4y + 6) years.

Answer 2

Answer:

• (y + 9) years.
• (y - 4) years.
• (4y + 6) years.

Step-by-step explanation:

Given

• Maria's present age is y years.
• Maria's grandfather age is 4 times Mario present age plus 6.

To find

• Maria's age:

1. 9 years from now.
2. 4 years back.
3. Maria's grandfather age.

Solution

1. 9 years from now:

We have Maria's present age as y years , then her age 9 years from now means her age in future (from now) , (from present), so we need to add (since future).

• y + 9
• Present age + 9 years

Hence, Maria's age 9 years from now is (y + 9) years.

      2. 4 years back:

Now we are asked to find her age 4 years back , that means her age (past) since back, so we need to minus (since past).

• y - 4
• Present age - 4 years

Hence, Maria's age 4 years back is (y - 4) years.

      3. Maria's grandfather is 4 times Maria present age plus 6.

Maria's grandfather age is 4 times Mario present age + 6

• 4(y) + 6
• 4y + 6

Hence, Maria's grandfather age is (4y + 6) years.