Question

a tank is 45% full and contains 42 litres of water what is a full capacity of the tank? also find the hom many litres of water must be added to make it 75% full
​

Answer 1

Answer:  93.34 litre

Step-by-step explanation:

Given,  45% of a = 42L

=> a = 42 x 100/45 = 93.34 L

So, 75% 0f 93.34 L = 70.005L

Answer 2

Answer:

The amount of water to be added is 28lit

Step-by-step explanation:

Let V be the total volume of the tank

given that

45% of V=42

0.45 of V=42

0.45*V=42

V=42/0.45

V=93.33 lit

75%*V

0.75*93.33=70

Hence,we need a volume of water in the tank,since it already contains 42lit the additional water needed will be 70-42=28 lit