You are Here: Home >< Maths

1. Can't work out the answer to this one. Any help appreciated.

6 An open cylindrical container made from sheet metal of uniform thickness has a mass of
800 g. When completely filled with water the total mass is 15.6 kg.
What would be the total mass of a cylindrical container full of water made from the same
sheet metal (of the same thickness) but with double the diameter and double the height?
A 118.4 kg
B 121.6 kg
C 124.8 kg
D 128 kg
E 131.2 kg

Thank you!
2. Lengths are doubled, so the volume is 2^3 = 8 times more...
3. Thanks,

I did 14.8kg x 8
then 800g x 4
to give me a final answer of 121.6kg, which I checked the answer key, is right.

### Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: March 26, 2011
Today on TSR

How do you think you'll do?

### University open days

Wed, 25 Jul '18
2. University of Buckingham
Wed, 25 Jul '18
3. Bournemouth University
Wed, 1 Aug '18
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

## Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE