Question

Present ages of Hari and Harry are in the ratio 3 : 4. Five years from now
the Sum of their ages be 45 years. Find their present ages.

Answer 1

Step-by-step explanation:

The ratio of Hari's and Harry's present ages is 5:7

So, let their ages be 5x and 7x

After 4 years their ages will be in ratio 3:4

Therefore,(5x+4)/(7x+4)=3/4

or, 4(5x+4)=3(7x+4)

or, 20x+16=21x+12

or, 16−12=21x−20x

or, 4=1x

or, x=4

Therefore, present age of Hari = 5x=(5×4)=20 years.

Present age of Harry =7x=(7×4)=28 years

The sum of their age is 28+20=48years

Answer 2

☘️ Answer:

• The present age of Hari = 15 years
• The present age of Harry = 20 years

☘️ Step-by-step explanation:

Let,

The present age of Hari = 3x

The present age of Harry = 4x

After two years,

The age of Hari = 5x + 5

The age of Harry = 7x + 5

Also,

The sum of their as will be 45 years.

★ According to the Question :

⟶ (3x + 5) + (4x + 5) = 45

⟶ 3x + 4x + 10 = 45

⟶ 7x = 45 - 10

⟶ 7x = 35

⟶ x = 35/7

⟶ x = 5

__________________________

• The present age of Hari = 3x

⟶ 3 (5)

⟶ 15

The present age of Hari = 15 years

__________________________

• The present age of Harry = 4x

⟶ 4 (5)

⟶ 20

The present age of Harry = 20 years

Therefore,

The present age of Hari and Harry is 15 years and 20 years respectively.