If a tap could fill entire tank in 20 hrs due to leakage, then in how much time

If a tap could fill entire tank in 20 hrs due to leakage, then in how much time tank can be emptied by leakage if tap can fill entire tank in 16 hrs without leakage

Quiz

Answer/Solution

80hrs

Steps/Work

time take to fill[withleakage] =20hrs so workdone in 1hr=1/20
time tkae to fill[without leakage]=16hrs so workdone in 1hr=1/16
if u subtract both u'll get time taken by leakage to empty...
1/20-1/16=1/80 so 80hrs
ANSWER:D