You are Here: Home >< Maths

# GCSE maths percentage reduction question Watch

1. Hi, I need help on how to answer this question, I have asked my teacher ut she would not explain it to me.

Question:
Vicky needs to insure her car. The premium is £920 per annum. Vicky gets a 15% reduction for agreeing to be the only driver. She then gets a further 12.5% reduction for agreeing to pay the first £500 of any damage to her car. What premium does she have to pay.

My attempt:
0.15x920=138 0.125x920=115
920-(138+115)=667
I only scored 1 mark out of 5.

Is the 12.5% reduction supposed to be taken out of 920 or (920-138)?
2. (Original post by lili4648)
Hi, I need help on how to answer this question, I have asked my teacher ut she would not explain it to me.

Question:
Vicky needs to insure her car. The premium is £920 per annum. Vicky gets a 15% reduction for agreeing to be the only driver. She then gets a further 12.5% reduction for agreeing to pay the first £500 of any damage to her car. What premium does she have to pay.

My attempt:
0.15x920=138 0.125x920=115
920-(138+115)=667
I only scored 1 mark out of 5.

Is the 12.5% reduction supposed to be taken out of 920 or (920-138)?
To me the question is a bit ambiguous - it could easily be interpreted as just taking away 15% and 12.5% of the original amount. But I think you're right - it says 'further' so you should take away 15% first, then take 12.5% from that amount.
3. 920-138=782 then 0.125x(920-138)=97.75 782-97.75=684.25
Because the way you did it makes it 27.5% discount but because it says further discounts it is a discount that comes afterwards the first discount

Posted from TSR Mobile

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: April 30, 2016
Today on TSR

### Am I pregnant?

...or just paranoid?

### A robot wrote Harry Potter?

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• 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
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• 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

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.