Question

Bharti is older than
Aarti by 3 years
what will be the age of Aarti aften
3 years
it sum of their ages is 12?​

Answer 1

Answer:

7.5 years

Step-by-step explanation:

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Answer 2

Concept:

Algebra is a branch of mathematics concerned with symbols and the rules that govern their application. According to the definition of algebra, the study of mathematical symbols and rules may entail manipulating these symbols. From solving simple equations to analysing abstractions, algebra covers a wide range of topics.

Given:

Bharti is older than Aarti by 3 years. Sum of their ages is 12.

Find:

The age of Aarti.

Solution:

Let Bharti age be $x$ and Aarti age be $y$.

$x+y=12$    ....(1)

$x = y+3$      ....(2)

Substitute equation (2) in equation(1)

$y+3+y=12\\2y=9\\y=4.5$

Age of Aarti after $3yrs$ is

$=4.5+3\\=7.5$

Hence, age of Aarti after $3yrs$ is $7.5yrs$.

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