Question

at present a tank contain 325litre of water and it is 65percent full .Find its full capacity .how much litre of water must be added into it so that it is 90percent full?​

Answer 1

Answer:

Step-by-step explanation:

65% tank=325 litre

100% =(325/65)*100

=5*100=500 liters

90% of tank=90/100*(500)=450 litre

Thus water to be added

=450-325=125 liters

Answer 2

Step-by-step explanation:

65% of x=325 litres

65/100*x=325 liters

x=325*100/65

x=500

100%-90%=10%

x - 10% of x

500-10/100*500

=450