Question

water tank can be filled in 7 by 5 equal sized pump working together how much time will 7 pump take to fill it up ​

Answer 1

Answer:

5 hours

Step-by-step explanation:

time taken by 5 tanks = 7 hours

time taken by 7 tanks = x hours

INVERSE VARIATION

5 : 7 : x : 7

7x = 5×7

7x = 35

x = 35

7

x = 5

therefore the time taken by 7 pumps to fill the tank is 5 hours