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primary 6 | Maths
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Date Posted: 2 years ago
Views: 314
Is girl 96 and boy 56? Thanks
My answer
Boy 44
Girl 120
Boy 44
Girl 120
Is not total unchanged? All change to 28u
Girls 24u and boys 4u
Girls 21u and boys 7u
Girls
3u = 12
1u=4
24u =96
Boys
3u = 24
1u=8
7u =56
Can let me know where go wrong? Thanks
Girls 24u and boys 4u
Girls 21u and boys 7u
Girls
3u = 12
1u=4
24u =96
Boys
3u = 24
1u=8
7u =56
Can let me know where go wrong? Thanks
My mistake..
Boy 52
Girl 168
Boy 52
Girl 168
Is total at 1st unchanged.
You need to add back boy 24 for 7u.. and girl add back 12 for 4p ...
You need to add back boy 24 for 7u.. and girl add back 12 for 4p ...
learn to chk
→ Is girl 96 and boy 56?
56-24 = 32
96+32 = 128
7×32 = 224 ≠128 ✘
AC Lim →
My answer
Boy 44
Girl 120
If #1
44-24 = 20
20+120 = 140
7×20 = 140 ✓
If #2
120-12 = 108
44+108 = 152
4×44 = 176 ≠ 152 ✘
→ Is girl 96 and boy 56?
56-24 = 32
96+32 = 128
7×32 = 224 ≠128 ✘
AC Lim →
My answer
Boy 44
Girl 120
If #1
44-24 = 20
20+120 = 140
7×20 = 140 ✓
If #2
120-12 = 108
44+108 = 152
4×44 = 176 ≠ 152 ✘
Do u have a similar qn? Which she can try out? Appreciate with thanks
See 3 Answers
Thanks but to check is not total unchanged then it is under which section?
It is the typical "double if" question
try to use the ratio to link all items
It is NOT total unchanged problems. pls dont be confused
try to use the ratio to link all items
It is NOT total unchanged problems. pls dont be confused
done
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Hope this helps
Date Posted:
2 years ago
Total at first scenario = total of 2nd scenario.
To check if 2 scenario is only boys, it will not be double if but total unchanged?
If only boy changed, then girl unchanged.... Make girl to same.
Actually, @Sstrike is correct, in not about total unchanged.
Is Total of 1st scenario = total of 2nd scenario.
Is Total of 1st scenario = total of 2nd scenario.
Thanks. I think she don't understand when to apply cos sch nv teach this type of qn but hmwk is given. So she tried the same method from what she learnt here from previous qn. Still thanks
done
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similar Q
Date Posted:
2 years ago
Many thanks
np, a lot similar Q actually
Do u happen to have them? Possible to provide me the source. Manage to find 2 similar ones..
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