Question

please do 17 to 20 questions with explanation.

Answer 1

here is the ans of que 17.


Solution of 20

the ages of Sonal and Manoj are in the ratio= 7:5
10 years later age ratio= 9:7
let the age of Manoj 10 year earlier= 5x
then Sonal age= 7x
now Manoj age = 5x+10
Sonal age= 7x+10
so equation through manoj age
=5x+10= 7x
x= 5
previous age of Sonal= 7x= 35
Manoj= 5x= 25
current age of Sonal= 7x+10= 45
Manoj= 5x+10=35