Question

4. The ratio between the ages of Kishore & Kabir is 5:3 after 5 years the surn of their ages will be 74 years. What is the present age of Kichere?
50
60​

Answer 1

Ratio=5:3
Kishore-5x. Kabir-3x

After 5 years =

5x+5.
3x+5

So,
5x+5+3x+5=74
8x+10=74
8x=74-10
8x=64
x=64/8
x=8


5x=5*8=40
3x=3*8=24

Therefore, Kishore’s age is 40 and Kabir’s age is 24

Answer 2

Correct Question :

The ratio between the ages of Kishore & Kabir is 5:3 . After 5 years the sum of their ages will be 74 years. What is the present age of Kishore ?

Given :

⬤ Ratio between ages of Kishore and Kabir is 5:3

⬤ After 5 years , Sum of their ages will be 74 years .

To Find :

⬤ Present Age of Kabir .

Solution :

Let :

• Age of Kishore be = 5x
• Age of Kabir be = 3x

After 5 years :

• Age of Kishore be = 5x + 5
• Age of Kabir be = 3x + 5

Now :

$\sf{5x+5+3x+5=74}$

5x + 3x + 5 + 5 = 74

8x + 10 = 74

8x = 74 - 10

8x = 64

x = 64/8

x = 8

Therefore , The Value of x is 8 .

Hence ,

Age of Kishore = 5x

= 5(8)

= 40

Age of Kabir = 3x

= 3(8)

= 24

Therefore , Age of Kishore is 40 years and Age of Kabir is 24 years .

Check :

5x + 5 + 3x + 5 = 74

5(8) + 5 + 3(8) + 5 = 74

40 + 5 + 24 + 5 = 74

74 = 74

Hence Checked .