A Can Complete a work in 12 days and B Can Complete in 8 days. A works for 8 hrs every day while works for 10 hours every day. If A and B together start wooking & his Perday, in how many days will they complete the work?
+36916 A rate 1 job / (8hr/d x12 d) = 1j / 96 hr
Brate 1 job/ (10hr/d x 8d) = 1j /80 hr
1 job / ( 1 j / 96 hr + 1 j / 80 hr) = 43 .63 hrs
Together , they complete 8 hr + 10 hr = 18 hr /day
43.63 hr / 18 hr/day = 2. 42 days
+36916 A rate 1 job / (8hr/d x12 d) = 1j / 96 hr
Brate 1 job/ (10hr/d x 8d) = 1j /80 hr
1 job / ( 1 j / 96 hr + 1 j / 80 hr) = 43 .63 hrs
Together , they complete 8 hr + 10 hr = 18 hr /day
43.63 hr / 18 hr/day = 2. 42 days
