SG
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Primary 6
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Number and Algebra
Hello guys,Please help me with these MCQs.(Explain if can)thanks in advance
Replies
9
Zhong Shu Hao
138°+98°=236°
236°-180°=56° (3)
6 years ago
Phyllis Teo
Thx
6 years ago
Zhong Shu Hao
Susan ate half of (half of Paul's sweets), which is a quarter of pauls sweets.
Paul ate 2/5 of the remaining (half of his sweets), which is 2/10 of his INITIAL amount of sweets)
1/4units+2/10units=18
9/20 units = 18
1/20 units = 2
1 unit = 2 x 20
= 40. (4)
6 years ago
Zhong Shu Hao
When Sarah spent 10% less, her savings increased by 5%.
Extra savings = $650 x 10%
=$65
5% of savings =$65
100% of savings =$65x20
=$1300
Salary = savings + expenditure
= $650+$1300
= $1950 (4)
6 years ago
Zhong Shu Hao
So overall ans : 3, 4, 4
6 years ago
Phyllis Teo
Thx
6 years ago
Zhong Shu Hao
You need explanation for the first Q?
6 years ago
Phyllis Teo
No need alr tq
6 years ago
Zhong Shu Hao
Welcome!
6 years ago
Dol N Mat
Asked 9 years ago
SG
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Primary 5
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Number and Algebra
Need assistance for both Q. Thank You
Replies
3
Yeo See Yeong
6 years ago
Jason Oon
Maths is like conversing, as it is easier to converse and understand using the same language, converting to the same units helps.
6 years ago
Jason Oon
6 years ago
Dol N Mat
Asked 9 years ago
SG
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Primary 5
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Number and Algebra
Need assistance for both Q
Replies
5
Ida Tan
$0.10 + $0.50 = $0.60
$9.60 divided by $0.60 = 16
Ans is 16 ten-cent coins, 16 fifty-cent coins
6 years ago
Rai Low
16 sets of $.050 + $0.10 coins. 2 coins per set so answer should be 16 sets x 2 coins per set = 32 coins?
6 years ago
Ida Tan
there are 16 ten cent coins and 16 fifty cent coins, so yes total 32 coins