Question

Tinu takes 9 days more than his father to do a certain piece of work. Together they can do the work in 6 days. How many days will Tinu take alone to do the work ?

Answer using quadratic equation.
Pls answer with calculations.

Answer 1

I think this pic will help you.

Answer 2

Answer:

let Tinu takes x days to do that work

his father takes x-9 days to do that work

By given condition

x+ (x-9) = 6

2x = 6+9

x = 15/2

x= 7.5

Tinu takes 7.5 days to do that work alone