Q&A - P5 Math

[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

[happyheart]

Q2.

A pet farm had the same number of kittens, puppies and rabbits at first. After 35 kittens, some puppies and rabbits were sold, there were 65 animals left. There were thrice as many rabbits as puppies left. There were 26 fewer kittens left than the rabbits left. How many rabbits and puppies were sold?
Ans: 44

Pls help, thanks!

[happyheart]

Q3:

Kassim had 3 times as many stamps as Peiling. Leonard had 82 stamps more than Peiling. Kassim then sold 106 of his stamps and Leonard bought another 50 stamps. Kassim and Leonard had an equal number of stamps in the end.

a) How many more stamps did Kassim have than Peiling in the end?
Ans:132

b) How many stamps did the three of them have altogether in the end?
Ans: 621

In MD, I always have problem determining where to place the give away number and the additional bought. Appreciate your help pls.