Search found 37 matches

by EconsPhDTutor
Sat Sep 03, 2016 10:15 am
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2105077

Re: Q&A - PSLE Math

Pls help. TIA. Charlie had 148 pieces of $2 and $5 notes. She spent 60% of her $5 notes to buy a bag and then her mother gave her another six $2 notes. As a result, the number of $2 notes was thrice as many as the number of $5 notes left. Find the amount of money Charlie had left. Answer: $308. Sol...
by EconsPhDTutor
Wed Aug 03, 2016 11:13 am
Forum: Tertiary Education - A-Levels, Diplomas, Degrees
Topic: Where to buy A level textbooks
Replies: 8
Views: 10137

Re: Where to buy A level textbooks

Free H2 Mathematics Textbook. Covers both old (9740) and revised (9758) syllabuses. Includes Ten Year Series and answers.

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by EconsPhDTutor
Tue Jul 19, 2016 11:52 am
Forum: Primary 5
Topic: Q&A - P5 Math
Replies: 7005
Views: 635548

Re: A Mathlympics Question

4 men and 4 women are to be seated at round table for dinner.If the men and women take alternate seats, how many arrangements are possible? Fix any man in place (call him Man #1). To his left is a woman (4 possible choices) --- call her Woman #1. To her left is a man (3 possible choices) --- call h...
by EconsPhDTutor
Wed Jun 15, 2016 9:23 am
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2105077

Re: Q&A - PSLE Math

Hi Dr Choo, Thanks so much for your help. For question 13, the answer in answer sheet is 99.98cm. I think it could be wrong, I am not sure. Nevertheless, we thank you for helping us solve it. Thanks Dido Hi It was a mistake on my part. As pointed out by speedmaths (thanks!), I incorrectly used the ...
by EconsPhDTutor
Tue Jun 14, 2016 8:18 pm
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2105077

Re: Q&A - PSLE Math

Hi, I am trying to help my P6 child in his Math revision, but I couldn't solve. Can someone help? Thanks a million. :shrug: http://i67.tinypic.com/e71768.jpg God Bless 13. I interpret this question to be asking for the length of the perimeter of Figure 1 with which Ball A comes into contact, during...
by EconsPhDTutor
Tue Jun 14, 2016 7:41 pm
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2105077

Re: Q&A - PSLE Math

Hi, I am trying to help my P6 child in his Math revision, but I couldn't solve. Can someone help? Thanks a million. :shrug: http://i66.tinypic.com/2drcr4z.jpg God Bless 15(a) 14 cm × 756.25 cm² =10,587.5 cm³. 15(b) Let X be the water level of Tank B after all the pouring is done. Then (X - 20) cm i...
by EconsPhDTutor
Fri Jun 03, 2016 4:25 pm
Forum: Primary 6 & PSLE
Topic: Q&A - PSLE Math
Replies: 17002
Views: 2105077

Re: Q&A - PSLE Math

pls help. thank you very much. a motorcycle travelled 75km in 45 mins and later increased its speed by 20% for the next 150km. what was the average speed of the motorcycle for the whole journey? During the first 45 mins, its average speed was 100 km/h. We are told that for the remaining 150 km, its...