# Mr Sharma is twice as old as his son . After 4 years he will be 4 times as old as his son was 9 years ago. How old are they both now?

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by adityac

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by adityac

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Then, lets express in equation form-

Mr. Sharma age =

Son age=

after 4 years...

After 4 years Mr Sharma will be = 2x+4

His son's age 9 years ago= x-9

4(x-9) = 2x+4

4x-36 = 2x+4

2x = 40

x = 20

Therefore, Mr Sharma is 40 years old and his son is 20 years old now.