Question

please give me answer in this question number 4

Answer 1

To divide rupees 900 in the ratio of 4:5. 
We have to take the ratios as 4x and 5x.
So 4x+5x=900 
⇒9x=900
⇒x=900/9=100
so in the ratio 4:5 we get rupees 400 and rupees 500 
Thanks :)