Pls help for maths holiday homework
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1) boys -> 60%
Girls -> 100%-60%=40%
Difference -> 60%-40%=20%
1260x2= 2520
20%=2520
40% = 5040
2) (same method as 1) -
sorry where to get 1260 and why need to x 2 very sorry i cannot understand.
Thanks for your help -
there is also information about each girl n boy get is this information not using at all? thanks you
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1) Algebra?
Given that 60% of the children who attended were boys,
(No of Boys)/(No of Girls)=6/4
(No of Boys)=(No of Girls)x6/4 … (1)
…every boy is given 5 chops while each girl is given 6 chops…boys received 2160 more chops than the girls,
(No of Boys)x(Chops that Boys Get)-(No of Girls)x(Chops that Girls Get)=2160
(No of Boys)x5-(No of Girls)x6=2160 … (2)
Sub (1) to (2):
(No of Girls) x 6/4 x5 - (No of Girls)*6= 2160
(No of Girls) x 5/4 - (No of Girls) = 360
(No of Girls) x 1/4 = 360
No of Girls = 1440 -
Thank you very very much 谢谢
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