1. ## Glass/Water problem

Sarah notices her glass is 6/7 full. She pours 4/5 of its content into an empty jug.

1) What fraction of her glass is then full?

I got 6/35 but cannot remember how. Could someone please explain, i did this ages ago and forgot...

2) Arjun pours the contents of the jug into his glass, which is 4/3 times bigger then Sarah's glass. What fraction of Arjun's glass is then full?

Again I got 18/35 but forgot how I got to that answer...

Any help would be much appreciated.

Many thanks,

Natasha

2. ## Re: Glass/Water problem

Originally Posted by Natasha1
Sarah notices her glass is 6/7 full. She pours 4/5 of its content into an empty jug.

1) What fraction of her glass is then full?

I got 6/35 but cannot remember how. Could someone please explain, i did this ages ago and forgot...

2) Arjun pours the contents of the jug into his glass, which is 4/3 times bigger then Sarah's glass. What fraction of Arjun's glass is then full?

Again I got 18/35 but forgot how I got to that answer...

Any help would be much appreciated.

Many thanks,

Natasha
1) you start with 6/7. You remove 4/5 of that leaving 1/5 of it. 1/5 * 6/7 = 6/35

2) the contents of the jug was 4/5 * 6/7 of Natasha's jug = 24/35 of that jug.

Arjun's jug is 4/3 times bigger so it fills 3/4 * 24/35 = 18/35 of Arjun's jug.

Thanks