Question

The present ages of sita and gita are in the ratio 7:5 after ten years the ratio of their ages will be 9:7 Find their present ages

Answer 1

present ages,
that of sita is 7x and that of gita is 5x.
after ten years,
sita is 9x + 10 and gita is 7x + 10.
so age of sita is 9x + 10 = 7x
thus, x = 5 .
present ages of sita is 35 and that of gita is 25

Answer 2

Answer:

Ranjana's present age

= 15x years

Rakhi's present age = 17x years

After 6 years,

$\frac{15x + 6}{17x + 6} = \frac{9}{10}$

=> 153x - 150x = 60 - 54

=> 3x = 6 => x = 2

Therefore, Raniana's age after 6years

= 15x + 6

$(15 \times 2 + 6) \: years \: = \: 36years$