It takes Harry 20 minutes longer to tie his shoes than Lloyd. Working together, they can tie Harry's shoes in 45 minutes. How long does it take Harry to tie his shoes working alone?

let

suppose harry takes x times and lioyad takes y times.

then y=x-20 and x+y=45

from equation 1

y=x-20 put in equation 2

x+x-20=45

2x=45+20=65

x=65/2

x=32.5 minutes hence harry takes 32.5 min

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up