Question

mohan is 4 time as old as shyam. if the difference of their age is 9 years, how old is mohan?​

Answer 1

Answer:

3

Step-by-step explanation:

let shayam be x

then mohan=4x

their difference=9

then=4x-x=9

3x=9

x=9÷3

=3

Answer 2

Solution

Given :-

• mohan is 4 time as old as shyam
• difference of their age is 9 years

Find :-

• Present age of Mohan & Shyam

Explanation

Let,

• Age of Mohan = x years
• Age of Shyam = y years

A/C to question,

(mohan is 4 time as old as shyam)

➡x = 4y

➡ x - 4y = 0 __________(1)

Again,

(difference of their age is 9 years)

➡ x - y = 9 ___________(2)

Subtract equ(1) & equ(2)

➡ -4y + y = -9

➡ -3y = 9

➡y = 9/(-3)

➡y = -3

We know,

Age be always positive ,

So, neglect negative sign .

Then, we have

• y = 3

Keep value of y in equ(2)

➡ x - (3) = 9

➡x = 9 + 3

➡x = 12

Hence

• Age of Mohan(x) = 12 years
• Age of Shyam(y) = 3 years

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