Q&A - P5 Math

[MathIzzzFun]

Easy-going:

Anybody can help me solve this problem sum?


If X gives Y 1/3 of his money, Y willhave $70 more than X. If X gives Y 1/5 of his money, Y will have $10 more than X. How much does each of them have at first?

Hi

X --> 15 units
After X gives 1/3 to Y, X --> 10 units, Y ---> 10 units + 70

So, money each has :
X --> 15 units
Y --> 5 units + 70

If X gives 1/5 to Y,
X --> 12 units, Y --> 8 units + 70
8 units + 70 = 12 units + 10 --> 4 units = 60, 1 unit = 15

X --> 15 x $ 15 = $ 225
Y --> 5 x $ 15 + & 70 = $ 145

cheers.

[blueymum]

Thanks Tianzhu for your help. Really appreciated it.



Just wondering if anyone knows how to solve this?

Sam earns 7/9 as much as Andy. Ken’s salary is 1/6 of the total salary of the three men. Ken earns $2560 less than the combined salary of Sam and Andy. What is Sam’s salary?

thanks all!!

[blueymum]

Thanks Tianzhu for your help. Really appreciated it.



Just wondering if anyone knows how to solve this?

Sam earns 7/9 as much as Andy. Ken’s salary is 1/6 of the total salary of the three men. Ken earns $2560 less than the combined salary of Sam and Andy. What is Sam’s salary?

thanks all!!

[MathIzzzFun]

blueymum:

Thanks Tianzhu for your help. Really appreciated it.



Just wondering if anyone knows how to solve this?

Sam earns 7/9 as much as Andy. Ken's salary is 1/6 of the total salary of the three men. Ken earns $2560 less than the combined salary of Sam and Andy. What is Sam's salary?

thanks all!!

Hi

Sam : Andy --> 7 : 9 --> 35u : 45u (total 80u)
Ken : Sam + Andy --> 1 : 5 --> 16u : 80u

80u-16u = 64u --> $ 2560
1u --> $ 40

35u --> 35 x $40 = $ 1400

Sam's salary = $ 1400

cheers.

[MathAche]

thank you both for the answer and model. Cheers.

[blueymum]

Thanks


Just to check how did you derive 35u:45u ?

Appreciate your help.

[MathIzzzFun]

blueymum:

Thanks


Just to check how did you derive 35u:45u ?

Appreciate your help.

Hi
u r welcome

Sam + Andy --> 7 + 9 = 16
Ken's salary : Sam + Andy --> 1: 5
So, need to make Sam + Andy a multiple of 5 and the lowest common multiple of 16 & 5 is 80 ie 16 x 5

cheers.

[blueymum]

Thanks so much.


Was trying this:
Pam’s savings was 3/7 of Mary’s savings.
Jan’s savings was 2/5 of the total savings of the three children.
Pam and Mary have $240 more than jan.
How much is pam’s savings?

P:S —> 3:7
J: P+ S—> 2:4

Is this right? And how do I do the next step?

Thanks !!

[small]

Hi blueymum,


HTH…

Pam's savings was 3/7 of Mary's savings. Jan's savings was 2/5 of the total savings of the three children. Pam and Mary have $240 more than Jan. How much is pam's savings?

Pam's savings was 3/7 of Mary's savings
Pam : Mary
3 : 7
9U : 21U (total 30 Units)

Jan's savings was 2/5 of the total savings of the three children.
Jan : Pam + Mary
2 : 3
20U : 30U

Jan : Pam : Mary
20 : 9 : 21

Given Pam and Mary have $240 more than Jan.
30U – 20U = 240
10U = 240
1U = 24

Pam have 9 units
9 x 24 = 216

[happyheart]

Need help with these 3 questions. Thanks in advance.


Q1. The cost of a pair of soccer boots and a tshirt is $175. The cost of the tshirt and a cap is $64. The cost of the pair of soccer boots is 4 times the cost of the cap. How much more does the pair of soccer boots cost than the tshirt?
Ans: $121