Question

49 pumps can empty a reservoir in 61/2 days, working 8 hours a day. If 196 pumps are used for 5 hours a day, then the same work will be completed in how many days? (a) 2.6 days (b) 3 days (c) 2.5 days (d) 2 days

Answer 1

Answer:

61/5

Step-by-step explanation:

m1d1h1/w1= m2d2h2/w2

m1=49days

d1=61/2 days

h1=8 hours

w1= 1 reservoir

m2=196 pumps

d2=?

h2=5 hours

w2=1reservoir

49×8×61/2×1=196×5×d2/1

d2=61/5 days