shristi is nine years older than anjana. in ten years, shristi will be twice as old as anjana was ten years ago. find there present ages.
Answers
Answer:
shristi's present age is 48, while anjana's present age is 39
Step-by-step explanation:
let x be shristi's age and y be anjana's age
x = 9 + y
x + 10 = 2 ( y - 10 )
y + 9 + 10 = 2y - 20
19 + 20 = 2y - y
y = 39
x = 9 + y = 9 + 39 = 48
Given : Shristi is nine years older than anjana.
In ten years, shristi will be twice as old as anjana was ten years ago.
To find : their present ages.
Solution:
Anjana Present age = A years
Shristi is nine years older
=> Shristi Present age = A + 9 Years
In ten years, shristi will be = A + 9 + 10 = A + 19 years
anjana ten years ago. = A - 10 years
In ten years, shristi will be twice as old as anjana was ten years ago.
=> A + 19 = 2(A - 10)
=> A + 19 = 2A - 20
=> A = 39
Anjana Present age = 39 years
Shristi Present age = 48 Years
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