Total marks=(2x78+2x74+2x80)/2=232
Fazil mark=232-2x78=76
6 years ago
Xavier Sng
6 years ago
Aishwarya Karthik
Thanks
6 years ago
Xavier Sng
My pleasure. Regards
6 years ago
Aishwarya Karthik
Asked 9 years ago
SG
chevron_right
Primary 5
chevron_right
Number and Algebra
Help pls
Replies
1
Noriha Sulong
1320 x 0.15 = $198
$263 - $198 = $65 extra money earned
6 years ago
Lynn Lina
Asked 9 years ago
SG
chevron_right
Primary 6
chevron_right
Number and Algebra
Pls help with this P6 qn....
Replies
9
Xavier Sng
6 years ago
Lynn Lina
Thank you!๐
6 years ago
Xavier Sng
The pleasure is mine. Regards
6 years ago
Lynn Lina
Hi Xavier Sng, can u explain ur method pls?
6 years ago
Xavier Sng
I am so sorry Lynn. I had not noticed your request. My most unreserved apology.
Ali had 50% more than Emma initially. One could have assigned 3 units to Ali and 2 units to Emma since 150% of 2 units is 3 units. Unfortunately Ali spent $60, which will be an issue when one has to draw a model with $60 removed from 3 units. Since $60 is divisible by 3, I chose to assign 3 units + $60 to Ali for what he had initially. That will mean that Emma started with 2 units + $40.
After Ali spent $60, he had exactly 3 units left. After Emma received $20, she was supposed to end with 2 units + $40 + $20 = 2 units + $60
If Ali ended up with 3 units, and 3 units was 75% of what Emma had at the end, Emma should end up with 4 units, wasn't it?
So we have 4 units equivalent to 2 units + $60.
2 units must be $60, and 1 unit $30.
6 years ago
Lynn Lina
๐๐
6 years ago
Xavier Sng
Please do let me know if you require further explanation. Regards
6 years ago
Lynn Lina
Ok sure,lemme internalise 1st
6 years ago
Andrew Yap
Hope it helps.
6 years ago
Aishwarya Karthik
Asked 9 years ago
SG
chevron_right
Primary 5
chevron_right
Number and Algebra
Help pls.
Replies
7
Xavier Sng
$4 had changed hands, so the change in the difference in money between the two lads must be double of $4, ie $8.
Jeremy started $5 ahead. If Adam gave Jeremy $4, Jeremy would end up $5 + $8 = $13 more than Adam.
Since Jeremy had twice as much as Adam at the journey's end, Adam was left with $13, and Jeremy $26.
If Jeremy returns $4 to Adam, Adam will have $17, the amount he began with.
After returning Adam $4, Jeremy has $22, the amount he started off with.
6 years ago
Izam Marwasi
atFirst
Adam u+4
Jeremy u+4+5
After Adam give Jeremy $4
Adam = u
Jeremy=u+4+5+4=u+13
Jeremy will have twice of Adam..
Jeremy= 2 x Adam
u+4+5+4= u x 2
u+13=2u
u= 13
AtFirst
Adam--u+4=13+4=$17 (ans)
Jeremy u+4+5= 13+4+5=$22(ans)
6 years ago
Sharon Yap
6 years ago
Sharon Yap
Forgive the bad handwriting on recycled envelope :)
6 years ago
Izam Marwasi
Nice envelope Sharon Yap..
oops!..sorry nice model method I mean!!!
6 years ago
Sharon Yap
:p
6 years ago
Aishwarya Karthik
Thanks
6 years ago
Jia Ying Sin
Asked 9 years ago
SG
chevron_right
Primary 5
chevron_right
Number and Algebra
P5 ques tx in advance!!!
Replies
3
Xavier Sng
After giving Terry 36 cards, Glenn had 156-36= 120 cards left.
Glenn had 5 units of cards left, so each unit is 120รท5= 24 cards.
Terry ended up with 7 units or 7ร24 = 168 cards. Since he received 36 from Glenn, Terry must had started off with 132 cards.