Question

A vessel contains 360 litres of milk, 120 litres is taken out and
filled with water and another 90 litres is taken out and filled with
water and another 60 litres is taken out and filled with water.
Find ratio of milk and water in final milk.​

Answer 1

Answer:

Milk=360 litres

120 litres taken out then Milk= 360 litres-120 litres= 240 litres

Filled with water, water= 120 litres

90 litres milk taken out

milk= 240litres-90 litres

=150 litres

then Water= 120 litres+90 litres

=210 litres

60 litres milk taken out

Milk= 150 litres-60 litres

=90 litres

Then Water= 210 litres +60 litres

=270 litres

Milk:Water= 90:270

=1:3

Answer 2

Answer:

1)stage

120÷360=1/3

2) stage

90/360=1/4

3)stage

60/360=1/6

Remaining part of milk

$360 \times \frac{2}{3} \times \frac{3}{4} \times \frac{5}{6}$

$= 150$

water= 360-150

=210

final ratio milk and water

M :W = 150 : 210

=5 : 7