Question

Q6. Rohan is ‘d’ years old. Express the following in algebraic form:
(i) Twice Rohan’s age 5 years ago.
(ii) The present age of Rohan’s uncle, if his uncle is three times as old as Rohan will be three years from now.​

Answer 1

Answer:

The present age of Rohan’s uncle, if his uncle is three times as old as Rohan will be three years from now.

Step-by-step explanation:

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Answer 2

Let Rohan's present age be x years. Then, his mother's age is (x+26) years.

Rohan's age after 3 years =(x+3) years

After 3 years the age of Rohan's mother=(x+26+3)years=(x+29) years

∴(x+3)(x+29)=360⇒x  

32x−273=0

This is the required equation.

∴(x+39)(x−7)=0

∴x=−39 and x=7

∴x=7

∴ Mother's present age=7+26=33