Let the age of the younger sister be x and elder sister be x + 4,
Age of younger sister 5 years ago = (x - 5)
Age of elder system 5 years ago = (x + 4) - 5 = x - 1
According to the question:-
x-5/ x - 1 = 5/7
7x- 35 = 5x - 5
2x = 30
x = 15.
Hence, age of younger sister is 15 years.
Correct option is (D) none
Let Ramu's present age be x years.
\(\therefore\) Ramu's age before 4 years = (x - 4) years
Ramu's age after 12 years = (x + 12) years
\(\therefore\) x+12 = 3(x-4)
\(\Rightarrow\) x+12...
Correct option is (C) 18
Let present ages of P and Q are respectively 3x and 8x.
After 6 years, age of P = 3x+6,
age of Q = 8x+6.
According to given condition,
\(\frac{3x+6}{8x+6}=\frac49\)
\(\Rightarrow\) 9 (3x+6) =...
Let the present ages of the younger sister be ‘a’.
Given, girl is twice as old as her sister.
Age of elder sister = 2a
Also, four years ago, the product of their...
