Question

after 15 years a man will be twice of what he was 5 years ago. Find the age if the mab after 20 years ​

Answer 1

Answer:

let the mans present age =x years

After 15 years:-

mans age=x+15

Before 5 years:-

x-5

given,

x+15=2(x-5)

x+15=2x-10

x-2x=-10-15

-x=-25

x=25

therefore

After 20 years

x+20

=25+20

=45years

Step-by-step explanation:

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Answer 2

Answer:

45 years will be the age of man after 20 years

Step-by-step explanation:

let the mans present age =x years

After 15 years:-

mans age=x+15

Before 5 years:-x-5

given,

x+15=2(x-5)

x+15=2x-10

x-2x=-10-15

-x=-25

x=25

therefore

After 20 years

x+20

=25+20

=45years

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