Help with some Maths Questions from Manchester Grammar schl

[TraffordMum]

did neil spend the same as the first 4 put together?

if so

call the amount jim , john and nick spent each £a

so Paul spends 3a

neil spends 3a +3a = 6a

96/6 = 16 so Jim spent £16 ( I think!)

Hmm. I agree with the car journey one but not with this one.

I'm with you in that Jim, John and Nick spend a each and Paul spends 3a. If Neil spends the same as the first 4 put together then that is, indeed, 6a.

Therefore, the total spent by all 5 is a+a+a+3a+6a=12a

Therefore, 12a=96 and a=8.

Jim spent £8.

[guest201]

I get a different answer
Neil spent half of £96= £48
Paul spent half of this amount therefore he spent £24
leaving £24 between Jim John and Nick which makes £8 each
therefore I get an answer of £8 for Jim

[yoyo123]

did neil spend the same as the first 4 put together?

if so

call the amount jim , john and nick spent each £a

so Paul spends 3a

neil spends 3a +3a = 6a

96/6 = 16 so Jim spent £16 ( I think!)

Hmm. I agree with the car journey one but not with this one.

I'm with you in that Jim, John and Nick spend a each and Paul spends 3a. If Neil spends the same as the first 4 put together then that is, indeed, 6a.

Therefore, the total spent by all 5 is a+a+a+3a+6a=12a

Therefore, 12a=96 and a=8.

Jim spent £8.

that's what you get for multitasking!

[3Boysbarnetmum]

Thank you all for your help..I have another one to unravel....

Christopher gives half of hios marbles to one son, Ian, and one-sixth of them to his other son, Stuart . Ian gets 40 more marbles than Staurt. How many marbles did Christopher have at the start?

[3Boysbarnetmum]

Help again please...
A sheet of papaer has length 8 centimetres and width 6 centimetres. Godfrey cuts out four squares, whose sides are 2 centimetres long, from each of the corners of this sheet of papaer. what is the Perimeter of the remaining shape?

[yoyo123]

that last one definitely needs a diagram, draw it out and it will be easier to solve..

[yogkruti]

Help again please...
A sheet of papaer has length 8 centimetres and width 6 centimetres. Godfrey cuts out four squares, whose sides are 2 centimetres long, from each of the corners of this sheet of papaer. what is the Perimeter of the remaining shape?

Think there shouldn't be any change in the perimeter as long as you are cutting out rectangles (squares) from the corners.

[zonti]

Thank you all for your help..I have another one to unravel....

Christopher gives half of his marbles to one son, Ian, and one-sixth of them to his other son, Stuart . Ian gets 40 more marbles than Staurt. How many marbles did Christopher have at the start?

Ian's marbles = 1/2 = 3/6 = x+40
Stuart's marbles = 1/6 = x
Remaining marbles = 2/6 =2x


The sum of Stuart's and the remaining marbles = Ian's marbles
Therefore : 3x = x+40

3x - x=40
2x = 40
x=20

The number of marbles at the start = 6x =6*20=120

[saimaj21]

for the petrol question:

if 70% will take you 560km then:

70% of A = 560km.............. where A represents how many km the full tank will take you
therefore

70/100 x A = 560km
0.7A=560.......A=800km (this is your 100%)
then you do 800-560=240km will be how much remainder of petrol can do

hope that helps

[saimaj21]

for the perimeter question..it is definatly easier if you draw it out....
if u draw exactly what it says you end up with a cross and just add all the sides...