Data is provided for 3 months for a water tank whose capacity is
900000 L to provide continuous water supply to a colony. Water
tank is first completely filled and then it gets completely emptied
to supply water in the colony . It supply water continuously to the
colony and is refilled again and again to provide continous
supply. In the colony there are 60 houses in which all houses may
or may hot be completely occupied in the given three months .
June `to` Each house is filled with a tap form which rate of flow of
tank provides continuous water supply to these tape in the whole
month.
July ` to` In this month 45 houses are occupied and tank gets
emptied after ` 4 (1)/(6)` days . Rate of flow from one tape in June.
August ` to` Rate of flow of water from the taps is same as of June
and gets emptied after supplying water to the colony for 100 hr.
Number of houses unoccupied in August is P`%`.
What is the value of P`%` ?

Options

A. 30`%`
B. 25`%`
C. 33`%`
D. 20`%`

Answer

D

Explanation

Total times in which tank gets emptied
`=(25)/(6)xx24=100` hours
So, rate of flow `=(900000)/(45xx100)=200` L/hour
A% =`(250-200)/(250)xx100=20%`