The quantity that will be filled in one hour is 5/3
The calculation can be done by following the law of direct proportion, this means equating both values together to find the value of x.
Equate both fractions
2/5 = 2/3 hours
x= 1 hour
cross multiply
2/5 × 1= 2/3 × x
2/5 = 2/3x
x= 2/3 ÷2/5
= 2/3 ×5/2
= 10/6
= 5/3
Hence 5/3 of the tank will be filled in one hour
Please see the link below for more information on direct proportion
https://brainly.com/question/24903599
