Question

Two containers, A and B begin with equal volumes of liquid.

120ml is then poured from A to B.
Container B now contains 4 times as much liquid as A.
Find the volume of liquid left in container A at the end

Answer 1

Suppose A and B , both has initial volume, say x

120 ML is poured from B to A, then new volumes of A and B will be:

new volume of A (x-120)

new volume of B (x+120)

Volume of B is now four times volume of A, then

(x+120)= 4(x-120)

(x+120)=4x-180

3x=600

x=200

So, the initial volume of A and B containers is 200

So, at the end, volume of container A = 200-120=80

Hence the answer is 80 :

Explanation: