Question

Johnny and Bravo can paint a house in
60 days, while Johnny can paint it alone
in 80 days. How many days will Bravo
take to paint the house alone?​

Answer 1

Answer:

Heyy mate

Step-by-step explanation:

Your answer

Let's take Jonny and Bravo as x and y

x+y=60

And Jonny (x) can do in 80 days

Hence y=80-60=20

Thus we conclude that Bravo alone can paint in 20 days

Pls flw me

Answer 2

Answer:

If 60 days were needed for Johny and Bravo to paint a house, and if Johny paints the house in 80 days alone, then Bravo can paint the house alone in 240 days

Step-by-step explanation:

Let us take W as the total work done for painting

Given

Work done by Johny alone in 80 days = W

Work done by Johny alone in 1 day = W/80

So, work done by Johny alone in 60 days = W/80 *60 = 3W/4

So, work down by Bravo alone in 60 days $= W-\frac{3W}{4} \\\\= \frac{4W-3W}{4} \\\\= \frac{W}{4}$

So work done by Bravo in 1 day =

$\frac{W}{4*60} \\\\=\frac{W}{240}$

So, W/240 work is done by Bravo alone in 1 day

So, W work is done by Bravo alone in 240 days

So Bravo need 240 days to paint the house alone