Question

Robin is 25 years younger than his father . After 10 years, their ages will be in the ratio 1:2 find their present ages

Answer 1

Given that:

• Robin is 25 years younger than his father.
• After 10 years, their ages will be in the ratio 1 : 2.

To Find:

• Their present ages.

Let us assume:

• Robin's age = x years
• Robin's father age = (x + 25) years

Ages after 10 years.

• Robin's age = (x + 10) years
• Robin's father age = (x + 25 + 10) years

Finding their ages:

According to the question.

→ (x + 10) / (x + 25 + 10) = 1 / 2

Cross-multiplication.

→ 2(x + 10) = 1(x + 25 + 10)

→ 2x + 20 = x + 35

→ 2x - x = 35 - 20

→ x = 15

Their present ages are:

• Robin's age = x = 15 years
• Robin's father age = (x + 25) = (15 + 25) = 40 years

Answer 2

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.