x Turn on thread page Beta
 You are Here: Home >< Maths

# GCSE Maths question help please watch

1. How do i work this out please?

William's building and contents insurance is due for renewal. Last year it cost £215 and £159 respectively. The building insurance premium is unchanged but the contents has increased by 8%, what is his total premium this year?
2. You know that:

£215 - Building
£159 - Contents

You then have to find 8% of the contents and add it to the original contents price (159 + 8%)

Then add that number and the building number together to get a total and you should have your answer.

Hope that helps
3. (Original post by Danieeel)
You know that:

£215 - Building
£159 - Contents

You then have to find 8% of the contents and add it to the original contents price (159 + 8%)

Then add that number and the building number together to get a total and you should have your answer.

Hope that helps
I still dont get it

do i need to find the 8 percent of the 159?
4. (Original post by Blackstarr)
I still dont get it

do i need to find the 8 percent of the 159?
Yes you need to find 8% of 159 because the price of it has increased by 8%
5. (Original post by Danieeel)
Yes you need to find 8% of 159 because the price of it has increased by 8%
how do i find that?
6. (Original post by Blackstarr)
how do i find that?
You know that 159 is 100% of the price (it cost £159).

Therefore, you can work out 10% by doing 159/10 which is 15.9

From there, you can work out 1% by doing 15.9/10 which is 1.59.

You can then either do 1.59 x 8 (1.59 is 1% so if you times it by 8 you will find 8%)

Hope that makes it easier to understand
7. (Original post by Danieeel)
You know that 159 is 100% of the price (it cost £159).

Therefore, you can work out 10% by doing 159/10 which is 15.9

From there, you can work out 1% by doing 15.9/10 which is 1.59.

You can then either do 1.59 x 8 (1.59 is 1% so if you times it by 8 you will find 8%)

Hope that makes it easier to understand
Now i get it, but now how about the percentage decrease, how do i work it out....do i do the opposite? if so how?
8. (Original post by Blackstarr)
Now i get it, but now how about the percentage decrease, how do i work it out....do i do the opposite? if so how?
For percentage decrease you would do the same thing apart from you would take away the amount.

For instance, if your original price was £159 and you had a 8% decrease, you would still find 8%, however this time you would do 159 - 8% instead of adding it.
9. (Original post by Danieeel)
For percentage decrease you would do the same thing apart from you would take away the amount.

For instance, if your original price was £159 and you had a 8% decrease, you would still find 8%, however this time you would do 159 - 8% instead of adding it.
so for the increase its 1.59x8=12.72?

for the decrease £159-12.72=146.28?
10. (Original post by Blackstarr)
so for the increase its 1.59x8=12.72?

for the decrease £159-12.72=146.28?
Remember for the increase you need to add the 12.72 to 159 as it is 8% more than the original amount.
The decrease is correct I believe
11. (Original post by Danieeel)
Remember for the increase you need to add the 12.72 to 159 as it is 8% more than the original amount.
The decrease is correct I believe

Okay thanks
12. (Original post by Danieeel)
Remember for the increase you need to add the 12.72 to 159 as it is 8% more than the original amount.
The decrease is correct I believe
if i was to increase 48 mins by 25% will the math be like [email protected]

4.8/10=0.48

0.48x25=12

48+12=60?
13. (Original post by Blackstarr)
if i was to increase 48 mins by 25% will the math be like [email protected]

4.8/10=0.48

0.48x25=12

48+12=60?
That's right!

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: February 5, 2018
Today on TSR

### University rankings 2019

Cambridge at number one

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