
Hi..need your kind help.
Thank you.
Hi..need your kind help.
Thank you.
I can only do algebra. I’ll leave it to others to do the model answer.
Let B be the original number of boys in the camp.
Let G be the original number of girls in the camp.
(1) B = 2/3 * G
(2) 1/4 * B + 2/3 * G = 65
Substituting (1) into (2),
1/4 * B + B = 65
=> 5/4 * B = 65
Therefore B = 52
So, G = 3/2 * 52 = 78
So the total number of children in the camp at first = B + G = 52 + 78 = 130 #
Thank you so much! 🙏
Draw the model above based on the question. You have to divide each big block into half as shown by the dotted lines since 3/4 of the boys leave.
Rest of the working:
5 units —> 65
1 unit —> 65 / 5 = 13
10 units —> 130
There were 130 students at first.
Visit my website: https://sites.google.com/view/anytime-hw-cher/home
Draw the model above based on the question. You have to divide each big block into half as shown by the dotted lines since 3/4 of the boys leave.
Rest of the working:
5 units —> 65
1 unit —> 65 / 5 = 13
10 units —> 130
There were 130 students at first.
Visit my website: https://sites.google.com/view/anytime-hw-cher/home
Thank you so much..my child finally got it.🙏