Storm the brain by Coordinator Igcse https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr en-us 2020-08-17 10:25:38 UTC 2025-10-15 13:13:40 UTC hello@padlet.com https://padlet.net/icons/png/1f469-1f393.png igcsecoordinatordps https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634338972
1.   £580 is shared between Alice, Bally, Chris and Dean. The ratio of the amount Alice gets to the amount Bally gets is 4 : 5. Chris and Dean each get 2.5 times the amount Alice gets. Work out the amount of money that Bally received . [3]


2.   Pink paint is made by mixing red paint and white paint in the ratio 7 : 4 . Mr Finkelstein has 40 litres of red paint and 20 litres of white paint.  What is the maximum amount of pink paint he can make? [3]


3. A business has two different offices, one in London, the other in New York. .
The ratio of the number of staff at the London office to New York office is 3 : 5.  Employees of the business are either part time or full time. In London 30% of the staff are part time In New York 20% of the staff are part time
Given that the business has 38 part-time members of staff, work out the total number of employees
[4marks]





]]> 2021-07-02 03:08:42 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634338972 Bhanu https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634649623 1.   4:5:10:10=$580
A=4/29*580=$80
C and D= 10/29*580=$200
B=5/29*580=$100

2. 7:4
R= 40/7=5.7
W= 20/4=5
P=  5.7*7+4*5= 59.9

3. L:NY=3:5





]]> 2021-07-02 07:48:34 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634649623 Soumil https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634649892 2021-07-02 07:48:56 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634649892 Avinav https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634650142 1) a:b =4:5
      C = A x 2.5
      D = A x 2.5 

2) r:w = 7:4 
     40:20 
4x5 = 20 (which is the maximum amount of white paint) so red has to be also x5. Which is 35: 20 which is 55gallons

3)]]> 2021-07-02 07:49:15 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634650142 Dhrithi https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634650186 1)  4:5:2.5*4:2.5*4 = £580 = 29 parts
580/29 = 1part = 20
B = 5 parts = 20*5 = £100
2) P:R = 7:4 = 11 parts
40/11 = 3.6    20/11 = 1.8
max = 7*1.8:4:1.8 = 12.6:7.2 
= 12:7
3) L:N = 3:5
part time = 30/100 *3 : 20/100*5
0.9:1 = 1.9 parts
38/1.9 = 20
20*3 = 60
20*5 = 100
60+100 = 160 employees


]]> 2021-07-02 07:49:19 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634650186 Soumil soumilballa https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634650508 1) 4:5:10:10=580
580/29=20
20*5=100, Bally receives 100 pounds.
2) 20/4=5, red = 20
so 7*5 = 35, white = 35
so pink = 55 litres
3) 30/100*3=0.9
20/100*5=1
38/1.9=20
20*8=160]]> 2021-07-02 07:49:43 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634650508 Ayaan ayaanfm https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634652699 A to B = 4:5
C = 2.5A
D = 2.5A
C+D=5A
6A+B = 580
B = 5/4 A
6A+5/4A = 580
7.25 A = 580
580/7.25
7.25*4=29
29*2=58
58*10=580
4*2*10=80
A=80
80/4 = 20
20*5 = 100
B=100
2.5*80=160+40=200
C=200
D=200

A = $80
B = $100
C = $200
D = $200

2. 7:4
40/7 = 5 R 5
20/4 = 5

7*5 = 35
4*5 = 20
35+20 = 55

55 gallons of pink paint.

3. 3:5


]]> 2021-07-02 07:52:21 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634652699 Krishna https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634661887 1) A:B=4:5
C & D = 2.5*A
= 4:5:(2.5A):(2.5A) = 580$
= 29
1 part = 580/29 = 20 
A = 4 * 20 = 80
B = 5 * 20 = 100
2) r:w = 7:4 
 R = 40/11 = 3.6
W = 20/11 = 1.8
P = 7*3.6+4*1.8 = 32.4 litres of pink paint can be made
3) L:N = 3:5 
= 30% + 20% = 38
=

]]> 2021-07-02 08:03:35 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634661887 Kevin Shah Answers shahkevin2007 https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634662629 2021-07-02 08:04:24 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634662629 akshitreddy2007 https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634667074 Akshit Reddy]]> 2021-07-02 08:10:13 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634667074 Neal Rao nealvrao https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634670528 2021-07-02 08:15:02 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634670528 Atharv Bhanot https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634671048 2021-07-02 08:15:47 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634671048 Om hanshal https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634672902 2021-07-02 08:18:02 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634672902 Namratha https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634673595 2021-07-02 08:18:55 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634673595 https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634674398 UAnyshka]]> 2021-07-02 08:19:57 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634674398 https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634674673 2021-07-02 08:20:21 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634674673 Hiranmayi sowbhagyalaxmic https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634680030 1) A: B : C : D
4 : 5 : 10 : 10
(2.5 x 4 = 10)
 Total parts = 29
580/29 = 20
(20 x 4) : (20 x 5) : (20 x 10) : (20 x 10)
80 : 100 : 200 : 200
Bally gets £100

2) Red : white
7 : 4
7 + 4 = 11
 40/7 = 5.7
20/4 = 5
(7 x 5.7) + (4 x 5)
= 59.9
Pink paint = 59.9 liters

3) London : New York
3 : 5
30/ 100 x 3 = 0.9
 20/100 x 5 = 1
0.9 + 1 = 1.9
38/1.9 = 20
(20 x 3) + (20 x 5)
60 + 100 
160 total employees 
 
]]> 2021-07-02 08:26:43 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1634680030 akshitreddy2007 https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1635657980 2021-07-03 11:15:53 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1635657980 akshitreddy2007 https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1635658029 2021-07-03 11:16:03 UTC https://padlet.com/igcsecoordinatordps/kc2u6n6cx59rdopr/wish/1635658029