Question

Anitas present age is x yr
her mother is 30 yr older than anita
therefore mothers prsent age is __
10 yr ago ,anitas age was___
the ratio of anitas age to her mothers age is 10 yrs ago was1:1 ?​

Answer 1

Answer:

mom age is x+30

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Answer 2

Question :

1. Anita's present age is x yrs and her mother is 30 yrs older than Anita therefore mother's present age is ------
2. 10 yrs ago, Anita's age was ---- if the ratio of Anita's age to her mother's age was 1 : 7.

solution : 1. if Anita's present age is x

and her mother is 30 yrs older than Anita

then, her mother's age = 30 yrs + Anita's age

= (30 + x) yrs

2. 10 yrs ago, Anita's age was = (x - 10)yrs

mother's age was = (x + 30 - 10) = (x + 20) yrs

now ratio of their ages = (x - 10)/(x + 20) = 1/7

⇒7x - 70 = x + 20

⇒6x = 90

⇒x = 15 yrs

Therefore Anita's present age is 15 yrs and 10 year ago, her age was (15 - 10) = 5 yrs.