I can finish a work in 15 days at 8 hr day you can finish a work in 20 3

I take 15*8=120hr and you takes (20/3)*9=60hr to complete the work respectively ,overall time taken to complete the work togather=(120*60)/180=40hr
let x days are required to complete the work togather working 10hr a day then
10*x=40
x=4days
10 years agoHelpfull: Yes(1) No(0)

I finish the work in 120hrs(15*8)
You finish the work in 60hrs((20/3)*9)
total work is 120 parts(lcm of 120 & 60)
I do 1 part & You do 2 parts
total they do 3 parts per hour
they work 10 hrs per day,hence they do 30 parts per day
hence to complete 120 parts they take 120/30=4days
ANS:4days
10 years agoHelpfull: Yes(1) No(0)
1/120+1/60=1/40(work done per hour)
work done in 10 hour=1/4
required day=1/(1/4)=4
so b is d answer
10 years agoHelpfull: Yes(0) No(0)
I complete the work in 15*8=120
u can complte the work in 20/3*9=60
i & u=(120*60)/120=40
so num of days=40/10=4
10 years agoHelpfull: Yes(0) No(0)
I take 15*8=120hr and you takes (20/3)*9=60hr to complete the work togather=(120*60)/180=40hr
working 10hr a day then
x=40/10=4hr
6 years agoHelpfull: Yes(0) No(0)

I can finish a work in 15 days at 8 hr day. you can finish a work in 20/3 days at 9 hr day. Find in how many days we can finish job working 10hrs a day??
option:-
a. 3.5 days b. 4 days c. 4.5 days d. 5
days