Query re question in num. reasoning book 1 First past post

11 Plus Maths – Preparation and Information

Moderators: Section Moderators, Forum Moderators

Post Reply
11 Plus Mocks - Practise the real exam experience - Book Now
hasmum
Posts: 228
Joined: Wed May 18, 2011 11:56 am

Query re question in num. reasoning book 1 First past post

Post by hasmum »

Hi,
Please can anyone help Test 1 q. 4e, they have only given one measurement, cannot make out even after looking at answer :? . is the 2nd measurement missing ie height. The value of x is required... (straight line there)

It is a parallelogram.

----15cm---------
x
-------------------

Tried to draw it, if anyone can help. (drawing doesn't come out as intended) supposed to be slanted.
All other shapes have 2 measurements to go by.

thanks
frangipani
Posts: 299
Joined: Thu Jun 02, 2011 10:17 pm

Re: Query re question in num. reasoning book 1 First past po

Post by frangipani »

Hi,

The Area is given above the parallelogram = 90cm2
Base measurement is given = 15cm


Area = base x perpendicular height.

So divide the area by the base to get the height:

90/15 = 6

Therefore x=6

Hth
hasmum
Posts: 228
Joined: Wed May 18, 2011 11:56 am

Re: Query re question in num. reasoning book 1 First past po

Post by hasmum »

Hi,
Thanks for replying, was giving up hope for an answer and wondering whether to email the publishers as there definately is no 90 cm above our shape D on page 5. Looks like a printing mistake... :roll: wonder if anyone else had this.

I knew something was not right as was wondering where they got the 90cm2 from... looked at the answer.

Thanks again.
Post Reply