Question

15 pump can emptya tank in 21h find the time require by such 45 pumps to empty the same tank​

Answer 1

Answer:

hope it will help you

Step-by-step explanation:

Time taken by 12 pumps to empty a reservoir = 20 hr

Time taken by 1 pump to empty the reservoir = 20 × 12 = 240 hr

Hence, time taken by 45 pumps to empty the reservoir

= 240/45

= (240 × 60)/45

= 14400/45

= 320 min = 5×69 + 20 min

= 5 hour 20 minRead more on