Answer:
The capacity of water in the tank is 300 litres
Explanation:
Let the unknown capacity be x
4/5 of x-190 litres = 1/6 of x
4x/5-190 litres = x/6
Cross x/6 and 190 litres over the equation sign
4x/5-x/6 = 190 litres
The LCM is 30
(24x-5x)/30 = 190 litres
19x/30 = 190 litres
Cross multiply
190 litres*30 = 19x
5700 litres= 19x
Divide through by 19
x = 300 litres