Question

a tank on roof is filled by a tap whereas a top in lower ground take it out. if the tank is filled by tape in 1 hour is 25 litre and lower take it out in 1 hour is 10 litre . after 4 hour how much water in tank? at the time of starting tank is empty​

Answer 1

an hour

first tap fill = 25 lit

second tap empty =10 lit

so in one hour water in tank =25-10=15

after 4 hr

water in tank =4×15=60

Answer 2

Answer:

Question 6 answer

Step-by-step explanation:

Above tap fill in 1 hour = 25 litre

Above tap fill in 4 hour= 25×4=100 litre

Again, bottom tap drains in 1 hour= 10 litre water

bottom tap drains in 4 hour = 10×4 litre= 40 litre

Amount of water in tank after 4 hour = 100- 40 litre

= 60 litre

Therefore, there is 60 litre water in tank after 4 hour.