Question

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Answer 1

Let the age of Salim be x

Thus,age of Avinash=x+15

Sum of their ages=75

Thus-----

x+x+15=75

2x=60

x=60/2

x=30

Thus,age of Salim is 30 years.

Answer 2

Question :–

• Avinash is 15 years older than salim. If the sum of their ages is 75 years, find the age of salim ?

ANSWER :–

GIVEN :–

• Avinash is 15 years older than salim.

• Sum of their ages is 75 years.

TO FIND :–

• Age of salim = ?

SOLUTION :–

• Let the age of salim is 'x' .

• And the age of Avinash is 'y'.

▪︎ According to the first condition –

$\\ \sf \implies \: y = x + 15 \:\:\: ----eq.(1)$

▪︎ According to the second condition –

$\\ \sf \implies \:x + y = 75 \: \: \: - - - - eq.(2)$

• Put the value of eq.(1) in eq.(2) –

$\\ \sf \implies \:x + (x + 15) = 75$

$\\ \sf \implies \: 2x + 15 = 75$

$\\ \sf \implies \: 2x = 75 - 15$

$\\ \sf \implies \: 2x = 60$

$\\ \large \implies{ \boxed{ \sf x = 30}}$

• Age of salim is 30 year.

• And –

$\\ \sf \implies \: y = 30 + 15$

$\\ \large \implies{ \boxed{ \sf y = 45}}$

• Age of Avinash is 45 year .

▪︎ Hence , The age of salim is 30 year.