Tutor MathsGuru: Ask me for your burning Maths questions!

[Chan09]

Thank you. Is there a good maths book to learn this? :lol:

[Yu Xuan]

Dharma:

Chan09:

Need some help on this question. Male and female participants were divided equally into team A, B and C. Number of males in A is equal to number of females in B. 1/5 of males were in C. There were 160 more females than males altogether. What was total number of females? :stupid:

Hi Chan09,

This is an alternative to ADoc's solution.

http://postimage.org/image/ad1jln8k/

Hi Dharma & Adoc

I would like 2 view your solution, but hv problem opening it. Seems 2 hv this probl everytime. Thk you.

Regds
Yu Xuan

[Dharma]

Yu Xuan:

Dharma:

[quote=\"Chan09\"]Need some help on this question. Male and female participants were divided equally into team A, B and C. Number of males in A is equal to number of females in B. 1/5 of males were in C. There were 160 more females than males altogether. What was total number of females? :stupid:

Hi Chan09,

This is an alternative to ADoc's solution.

http://postimage.org/image/ad1jln8k/

Hi Dharma & Adoc

I would like 2 view your solution, but hv problem opening it. Seems 2 hv this probl everytime. Thk you.

Regds
Yu Xuan[/quote]Hi Yu Xuan,

Just left click on the image.

[Yu Xuan]

Hi Dharma,


Have done that many times… but i’ve got blank screen.
Thanks for the trouble.

Yu xuan

[Dharma]

Yu Xuan:

Hi Dharma,


Have done that many times... but i've got blank screen.
Thanks for the trouble.

Yu xuan

No. of males (Team A) = 1p
No. of females (Team B) = 1p

If the total number of males in Team C (1u) is 1/5 of the total number of males, the total number of males will be 5u.

Since the males and females are divided equally into the 3 teams (A, B and C); each of the 3 teams must have the same number of participants.

We can say that
No. of females (Team A) = 1u
No. of males (Team B ) = 1u
No. of females (Team C ) = 1p

Total number of males is 5u,
1p + 1u + 1u = 5u
1p = 3u

Total no. of females = 1u + 1p + 1p = 7u
Total no. of males = 1p + 1u + 1u = 5u

Difference between females and males = 7u – 5u = 160
2u = 160
1u = 80

Total number of females = 7u = 7 x 80 = 560

[ADoc]

Yu Xuan:

Hi Dharma,


Have done that many times... but i've got blank screen.
Thanks for the trouble.

Yu xuan

hi there! Perhaps this will work for you?

http://postimage.org/image/21onjf81w/

[Yu Xuan]

Hi Dharma


Very grateful that u copied it for me. Thank you!!

Hi Adoc

Your link worked!! Why is that so?
Thanks a million for your help too!!

Yu Xuan

[ADoc]

Yu Xuan:

Hi Dharma


Very grateful that u copied it for me. Thank you!!

Hi Adoc

Your link worked!! Why is that so?
Thanks a million for your help too!!

Yu Xuan

You're welcome YX!
I have absolutely no idea why that's so! happens to me sometimes as well...I can't even view my own image uploads while \"preview\".

[kwcllf]

…

[babyluvv]

Hi MathsGuru,


Pls help.

1) Box A contained 134 marbles and Box B contained 18 marbles at first. An equal number of marbles was added to each box. As a result of this, the number of marbles in A to the number of marbles in B became 5 : 1.
a) How many marbles were added to each box?
b) Next, some marbles were transferred from Box A to Box B so that there was an equal number of marbles in each box. How many marbles were there in each box in the end?

2) 7/12 of the guests in a party are adults. The ratio of the number of boys to the number of girls is 6 : 9. respectively. There are 144 more adults than girls. What is the total number of guests at the party?

3) In an auditorium, the ratio of the number of competitors to the number of non-competitors is 8 : 5. The ratio of the number of male competitors to the number of female competitors is 7 : 4. Given that 3/5 of the non-competitors are males and there are 32 female competitors, how many males and how many females are there in the auditorium?

Thanks,
Cheryl