Question

As much as 25 percent of the fruits and vegetables grown in Chinese
agricultural regions rot before they can be transported the long distances to
market. Which of the following is a smaller, more manageable problem that
contributes to this complex problem?

A. Mitigating problems associated with rising sea levels

B. Developing efficient ways of transporting food

C. Conserving Earth's limited fossil fuel reserves

D. Reducing global emissions of greenhouse gases​

Answer 1

Answer:

Let the present age be x then 2nd's age= x+10

15 years ago'

(x-15)*2=(x+10-15)

2x-30=x-5

2x-x=30-5

x=25 years

x+10=35 years