Question

A bucket of 20 litres is 35% full. How many litres of water must be put
into it is 65% full.

Answer 1

45 liters should be filled to gain 65%

Answer 2

Solutions :-

We have,
100% = 20 litres
1% = 20/100 = 0.2 litres


Find the 35% of water :-

1 % = 0.2 litres
35 % = 0.2 × 35 = 7 litres


Find the 65% of water :-

1% = 0.2 litres
65 % = 0.2 × 65 = 13 litres


Find how many litres of water must be put
into it so that it 65% full :-

(65 - 35) % = (13 - 7) litres
30% = 6 litres


Hence,
6 litres of water must be put
into it so that it 65% full.