Question

The answer is 20 years explain how.. Answer it is very urgent ​

Answer 1

Solution :-

Let :-

Present age of Mohan = x

Present age of Raman = y

5 years ago :-

Age of Mohan = x - 5

Age of Raman = y - 5

According to the first condition :-

$\longrightarrow \sf y = x + 5 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ..................(1)$

According to the second condition :-

$\longrightarrow \sf 1 \dfrac{1}{2} \times ( x-5 ) = y - 5 \\\\\longrightarrow \dfrac{3}{2} \times ( x- 5 )= y - 5 \\\\\longrightarrow \dfrac{3x-15}{2} = y - 5 \\\\\longrightarrow 3x-15 = 2(y-5) \\\\\longrightarrow 3x-15 = 2y - 10 \\\\\longrightarrow 3x-2y = 5 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ..................(2)$

Substitute the value of y in eq (2) :-

$\longrightarrow \sf 3x-2(x+5) = 5 \\\\\longrightarrow 3x-2x-10 = 5 \\\\\longrightarrow \bf x = 15$

Substitute x = 15 in eq (1) :-

$\longrightarrow \sf y = 15+5 \\\\\longrightarrow \bf y = 20$

Present age of Raman = 20 years

Answer 2

Answer:

present age rehaman is 20 years

Step-by-step explanation:

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